Black Box Version 1.0 manuale d’uso

MDS920C-10BT RACK-CARD MDS921AE-10BT STANDALONE MDS922AE-10BT MINI-RACK Ethernet Router / Bridge User Manual Version 1.0 Revision 11 February 2003 © Copyright ©2002 by BLACK BOX Network Servic es AG. The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a retrieval system, translated into any lan[...]

VERSION CONTROL .......................................................................................................... 5 1 INTRODUCTION ........................................................................................................ 6 3 SPECIFICATIONS ................................ FEHLER! TEXTMARKE NICHT D EFINIERT. 4 TECHNOLOGIES ..[...]

8.2.3 Default command .............................................................................. 48 8.2.4 Lan command.................................................................................... 48 8.2.5 List command .................................................................................... 49 8.2.6 Manage command..............[...]

10.1.3 SHDSL interface................................................................................ 80 10.1.4 Network interface .............................................................................. 81 10.2 Power supply................................................................................................... 81 10.2.1 Protection[...]

VERSION CONTROL version Date Major changes to previous version 0.1 30. Jul. 2001 First version 0.2 9. Sept. 2001 Pre-official version Chapter 4.2 is changed Small changes throughout the text 1.0 11. Feb. 2003 Layout, Small changes throughout the text Version: 1.0 Page. 5 of 95[...]

1 INTRODUCTION MDS921AE-10BT, MDS920C-10BT and MDS922AE-10BT n etwork and line termination units are a part of the Black Box PAM family (hereafter family) constructed for the organization of high- speed communication channels over one pair copper lines (D SL). This family of units represents G.shdsl modems that have 64 – 2312-kbit/s speed of data[...]

The units have all the possibilities for monitoring and management. Different management protocols that are used in the firmware of the family allow one to implement: 1. local management using a computer, whic h supports the VT 100 type emulation of the terminal; 2. remote moni toring and configuring over Telnet protocol; 3. remote moni toring and [...]

3 SPEC IFICA TION • High-speed symmetric data transfer over a 135-ohm physical twisted copper pair according to G.shdsl ITU G.991.2; • TC-PAM line encoding; • line speed from 72 Kbit/s to 2320 Kbit/s; • automatic and manual line speed adjusting; • Ethernet 10Base T interface; • bridge and router function; • built-in 4-port HUB on; •[...]

4 TECHNOLOGIES 4.1 xDSL technology, background xDSL technology appeared due to the growing user’s demand to high-speed digital stream transfer over telephone copper pairs. Operators had to organize the interconnection of backbone stations of cellular networks, Digital Loop Carrier systems, interstation connection and to provide high-speed Interne[...]

Transmission rate • Downstream • up to 6–8 Mbit/s • up to 1.5 Mbit/s for G.lite • Upstream • up to 640 Kbit/s • up to 512 Kbit/s for G.lite Line code • DMT • CAP Number of pairs • one pair Usage • public network operators (PNO) and Internet service providers Restrictions • Asymmetry 4.1.2 ISDN DSL technology The IDSL technol[...]

4.1.2.1 IDSL in brief Standard • T1.601 • interoperability between equipment of different manufacturers at the U interface layer Transmission rate • up to 144 Kbit/s • up to 64 Kbit/s + voice channel in NTU-128 Voice Line code • 2B1Q Transmission medium • one pair • possibility of the regenerator’s installation Usage • PNOs and pr[...]

4.1.3.1 HDSL in brief Standard • ETSI TS 101 135 • interoperability between equipment of different manufacturers is not provided Transmission rate • 1168 Kbit/s over each pair (2 Mbps over two pairs) Line code • 2B1Q • CAP 64 Transmission medium • two pairs • possibility of the regenerator’s installation (up to 3) Usage • PNOs •[...]

4.1.4 EXTRAns technology xDSL solutions are widely used for the organization of interstation trunk lines, creation of routes for multiplexers and routers. But the wide spread of analog systems with frequency division multiplexing/demultiplexing of the K-60, K-24, K-12 types makes it difficult to use sta ndard xDSL solutions over backbone (trunk lin[...]

• high-speed access to SDH networks Restrictions • two pairs are used for full stream transmission 4.1.5 Multispeed DSL (MDSL) technology The term SDSL was used for several years on the market. It was referred to all solutions meant for the synchronous digital stream transmission over one pair. This technology supports the possibility of line s[...]

Restrictions • the shortest distance of data transfer over one wire compared to other technologies 4.1.6 Multispeed DSL (MSDSL) technology The MSDSL technology is a further development of the MDSL technology. It allows to run o ver longer distances because of using a more progressive line code – CAP. In addition, it is possible to install a CAP[...]

• creation of trunk lines between PABX • incr ease of ca pacity of subs cribers’ lines with the help of Digital Loop Carrier s ys t e ms • high-speed access to SDH networks Restrictions • absence of compatibility with the equipment of other manufacturers • interference with other xDSL services 4.1.7 G.shdsl technology The G.shdsl techno[...]

• access to Internet • integration of LANs • creation of trunk lines between PABX • increase of subscribers’ lines with the help of Digital Loop Carrier systems • high-speed access to SDH networks 4.2 Local area network integr ation. Access to Internet Local area networks facilitate documentation-processing, a ccess to data in modern co[...]

Fig.1 Correspondence of TCP/IP layers with the OSI model layers Layer III The next layer (Layer III) is a layer of internetwork interconnection, which enables packet transmission using different transmission media, LANs, WANs, xDSL, etc. The Internet Protocol is used as the primary protocol of this layer (session layer in terms of the OSI model). A[...]

4.2.2 Address assignmen t in IP networks Any IP-network device is characteri zed by the addresses of three groups: Physical address . It is a hexadecimal MAC address of the network adapter or p ort. The MAC address is unique and is 6-byte long: the first 3 bytes are the manufacturer’s identifier and the other 3 bytes are uniquely assigned by the [...]

4 bytes 1 2 3 4 Class А 0 Network № Node № Class B 1 0 Network № Node № Class C 1 1 0 Network № Node № Class D 1 1 1 0 Multicast address Class E 1 1 1 1 0 Reserved Masks Network mask is a number, consisting of four bytes. It is a decimal nu mber divided by dots, and it is used together with the IP address. A mask usually contains decim[...]

The dynamic address assignment allows one to create IP networks in which the number of nodes exceeds the number of the IP addresses administrator has. 4.2.3 Bridging of local networks Bridges are the simplest devices for logical network structuring. They divide the transmission network medium into segments (logical segment s), forwarding data from [...]

address table of a simple network consisting of two segments. Fig.2 Simple network Segment 2 Segment 1 1 Bridge 2 3 4 Port 1 Port 2 MAC address Port 1 1 2 1 3 2 4 2 Each port work as an end node of the network segment. Originally, the bridge does not know what nodes with what MAC addresses are connected to each of its port. That is why it sends any[...]

Fig.3 Network with loops Suppose that host A sends an information unit to host B. Both bridges receive this information unit and conclude that host A belo ngs to network 2. Unfortunately, after host B receives two copies of the information unit from host A, both bridges again receive the same information unit onto their interfaces with network 1, b[...]

Fig. 4 Network before running STA The STA calls for each bridge to be assigned a unique identifier. Typically, this identifier is one o f the bridge's Media Access Control (MAC) addresses pl us a priority. Each port in every bridge is also assigned a unique (within that bridge) identifier (typically, its own MAC address). Finally, each bridge [...]

Fig. 5: Network after running STA The spanning-tree calculation occurs when the bridge is powered up and whenever a topology change is detected. The calculation requires communication between the spanning-tree bridges, which is implemented through configuratio n messages. Configuration messages contai n information identifying the bridge that is as[...]

Optimal path determination The determination of the optimal path is based on different standards of measurement, for example, path length, and metric. Routing algo rithms calculate path indexes to determine the optimal path to destination. To facilitate the process of path determination, routing algorithms initialize and maintain routing tables, wh[...]

Switching Switching algorithms are relatively simple and are basically the same for most routing protocols. In most cases, a host determines the necessity of sending a packet to another host. Having received a router's address, the source host sends a packet addressed specially to a router's physical (MAC layer) address, however, the pack[...]

4.2.4.2 Routing algorithms, RIP The rate of information processing and its trustworthiness depend on the routing algorithm. But more complicated and high-speed algorithms imply hi gh requirements to the router’s capacity. Static routing algorithms are the simplest ones. The network administrator establishes routing tables, and they do not change [...]

If there is a necessity to divide traffic on the basis of TCP ports, NAT makes it po ssible to map local addresses with one external address using TCP load distribution function. NAT functioning The NAT technology defines, as it is stated in the RFC 1631 standard, the ways of IP address translation, used in one network into another network addresse[...]

Let us illustrate PAT functioning: There is an internal network 191.167.0 and a router with a MAC address 193.200.150.5. A host from the internal network with an address 191.167.0.10 and TCP source port 1243 addresses web-server 205.131.1.1. While passing through the NAT interface, the outcoming packet will have the following changes: in the IP hea[...]

5 DESCRIPTION OF THE DEVICE 5.1.1 Background MDS92xxx-10BT is a device of Digital Subscriber Line (DSL) system used for data transmission over symmetrical physical copper lines. The TC-PAM line encoding technology (G.shdsl standard), which was accepted by ITU as the only world standard of high-speed symmetrical data transmission over one pair, is u[...]

CPU ROM RAM Ethernet RS-232 DSP A FT To DSL line Ether- net 10 BaseT RS- 232 Monitor DC/DC 12 V +5 V +3,3 V Commo n Bu s Fig. 15 Structural schematic of MDS92xxx-10BT The CPU enables control of all devices’ functioning units in accordance with the firmware and the parameters configured. The CPU supports the Ethernet and RS-232 interfaces. The mem[...]

of the incoming signal. The line interface includes a scheme with integrated into it Digital-to-Analog and Analog-to-Digita l Converters, input and output amplifiers with a programmed amplification and analo g filters that are used to convert digital data into a signal and visa versa. The device is powered from an in-built 3.3-V or 5-V AC-DC/DC ada[...]

5.2.2 Ethernet 10BaseT interface The Ethernet interface functions depend on the device operation modes. Bridge mode The bridge mode is used to connect LANs. The algorithm of the Ethernet traffic encapsulation into ATM is used in accordance with RFC 1483. The MDS92xxx-10BT device implements both the transparent bridge or spanning tree algorithms. Th[...]

5.3 Description of LEDs The following LEDs are used to display normal operation condition and alarm condition. Status LED Off On Blinking Alarm Normal operation Failure or start of the device Low quality of line BER > 15 % Synch DSL line is not connected Synchronization is set up Synchronization is in process Link The Ethernet network is off The[...]

6 MECHANIC DESIGN The Black Box devices have three mechanic designs: 1. Sub-Rack is a unit to be mounted in 19’’ chassis (MDS920AE-RMDC); 2. Mini-Rack is a unit of 1U height (44.5 mm) to be mounted in 19’’ rack or a cabinet; 3. Stand Alone is a compact unit to be mounted on the tabletop/desktop or another horizontal surface. Sub-Rack From t[...]

Fig. 16 MDS920C-10BT , NG, front panel Version: 1.0 Page. 37 of 95[...]

Mini-Rack From the constructive point of view, MDS922AE-10BT represents a case made of stainless steel and containing the basic elements of the device. Fig. 17 shows the front panel. The front panel has the following sockets and LEDs: LED Description Alarm Alarm LED Sync xDSL line status LED Link User’s Ethernet interface status LED Act Transmiss[...]

Fig. 17 MDS922AE-10BT , front panel Version: 1.0 Page. 39 of 95[...]

Stand Alone From the constructive point of view, MDS921AE-10BT represents a case made of shockproof polystyrene to withstand harsh environmental conditions and containing the basic elements of the device. The power supply unit represents an external power supply unit in the form of a plug. The panels have the following sockets and LEDs: LED Descrip[...]

7 EQUIPMENT INST ALLA TION The installation and connection of the Black Box PAM devices is implemented in the following order: • before the installation, make sure that the set is complete; • mount the device in 19” shelf (for the devices of the Sub- Rack type), in 19” rack or cabinet (for the devices of the Mini-Rack type), or on horizonta[...]

• Switch the device on. The initialization takes of about 20 seconds. When the time lapses the device is ready for configuring from the control computer. Note! The device must be disconnected from power during the installation. DSL and computer connectors are described in Chapter 11. Version: 1.0 Page. 42 of 95[...]

8 PROGRAMMING GUIDE 8.1 Introduction The equipment has built-in management and self-testing functions. The devices can be connected through the RS232 interface to the terminal or computer with a possibility of the terminal emulation for controlling and configuring. Note! The device, primarily configured through the RS232 interface, can be remotely [...]

ECHO ↵ %01 %02 %08 %10 %11 %12 Management of devices of Mini-Rack and Stand Alone type The management terminal is connected to the MONITOR socket (DB9 type), which is on the fro nt (for devices of the Mini-Rack type) or rear (for the devices of the Stand Alone type) panels. The requirements to the terminal configuration are similar to those of Su[...]

Version: 1.0 Page. 45 of 95 Fig. 19 Command tree of bridge mode[...]

Fig. 20 Command tree of router mode Version: 1.0 Page. 46 of 95[...]

8.2 Main menu of the bridge mode After the power is switched on, the terminal screen displays the booting pr ocess: NBfs2 Helium Family PP flash boot 6.1.0.25 (22 October 1999) (c) Copyright BLACK BOX 1999 SDRAM size = 0x800000, type = 0x2 NPn Booting... System start... >> The symbol >> means that the system is ready to accept commands.[...]

Command format: home Parameter: no 8.2.3 Default command The default command sets the default settings. >> default The data set to default successfully. >> Command format: default Parameter: none 8.2.4 Lan command The Lan command puts the system in the Ethernet submenu. >> lan > lan> Parameter: Setip: See 8.2.4.1 Show See 8.[...]

Command format: show Parameter: none Definitions: Ethernet ip: IP address of the device Subnet mask: Subnet mask 8.2.5 List command The list command displays the VC condition. >> list Port ethernet1 0: edd TxPkts: 0/0 RxPkts: 0/0 Port shdsl 0: oamloop TxPkts: 0/0 RxPkts: 0/0 TxVPI/VCI: 0/0 R xVPI/VCI: 0/0 1: oamloop TxPkts: 0/0 RxPkts: 0/0 Tx[...]

8.2.6 Manage command The manage command puts the system into the management submenu of the access to the device. >> manage > manage> Command format: manage [setpass] Parameter: Setpass: See 8.2.6.1 8.2.6.1 Setpass command The setpass command enables and disables the access password to the system. Password setting > manage> setpass[...]

Password change > manage> setpass Old Password:**** New Password(press ENTER to disable):****** Confirm password again:****** Password has been changed Saving configuration... Configuration saved. > manage> Command format: setpass Parameter: none. Definitions: Old Password: Enter the old password. New Password (press Enter to disable): [...]

Are you sure to disable password (y/n): Confirm the desire to disable the password by pressing “y”. Password has been changed: The password has been changed. Information line. Saving configuration…: The new configuration is saved automatically after the dialogue is finished. Note! The maximal password length should be no more than 20 symbols.[...]

Definitions: Please select bridge or router: Select the operation mode: bridge/router Current mode is router: The current mode is bridge: Note! The mode command changes the list of available commands in the main menu. 8.2.8 Ping command The ping command enables testing and allows checking the network efficiency. >> ping 10.0.1.55 >> Pre[...]

0 PVC existed, 8 PVCs available. VPI(0-4095): 8 VCI(1-65535): 35 Packet Filter ( Any/Ip/Pppoe ): a Add another PVC ? (y/n): n Enable Spanning tree? (y/n) : n Configuration MODE: Bridge FUNCTION: R1483 Spanning Tree: Disable # VPI VCI Package filter 1: 8 35 ANY Preserve the configuration (y/n) : y Configuration will have no effect until after save a[...]

Parameter: Delpvc: See 8.2.10.1 Pfilter: See 8.2.10.2 Setpvc: See 8.2.10.3 Setqos: See 8.2.10.4 Setspan: See 8.2.10.5 Show: See 8.2.10.6 8.2.10.1 Delpvc command The delpvc allows to delete one or all PVCs. > r1483> delpvc all > r1483> Command format: delpvc <all>|[<vpi>/]<vci> Parameter: All: Deletes all PVCs. VPI/VCI:[...]

> r1483> setpvc 8/35 llc > r1483> Command format: setpvc [<vpi>/]<vci> [llc/vcmux] parameter: VPI/VCI: Sets PVC with the VPI/VCI number. LLC/VCMUX: Shows the encapsulation type according to RFC1483. 8.2.10.4 Setqos command The setqos command sets the priority for the active PVC. > r1483> setqos 8/35 ubr > r1483> [...]

8.2.10.6 6 Show command The show command displays the configuration of all the active PVCs. > r1483> show FUNCTION VPI/VCI CLASS LLC/VCMUX Spanning Pkt Filter Rfc1483 8/35 ubr LLC Disable IP > r1483> Command formate: show Parameter: none. Definitions: Function: Defines the used protocol. VPI/VCI: PVC number. CLASS: Priority. LLC/VCMUX: [...]

Helium Family PP flash boot 6.1.0.25 (22 October 1999) (c) Copyright BLACK BOX 1999 SDRAM size = 0x800000, type = 0x2 NPnNo Booting... System start... >> Command format: save Parameter: none. Note! The save command restarts the system. 8.2.13 Shdsl command The shdsl command puts the system into the submenu of the shdsl line. >> shdsl &g[...]

8.2.13.2 Enable command The enable command activates the last settings of shdsl without them being saved and restarted. > shdsl> enable > shdsl> Command format: enable Parameter: none. 8.2.13.3 Terminal command The terminal command sets the device as the master or slave. > shdsl> terminal coe > shdsl> Command format: termina[...]

8.2.13.5 Fix command The fix command sets the manual mode of line rate adjustment. > shdsl> fix 768 > shdsl> Command format: fix <rate> Parameter: rate: Displays the rate at which the connection will be established. Rate is calculated according to the following expression n*64+i*8+8, where n is efficient capacity (1 ≤ n <36),[...]

Note! The adaptive mode must be configured on the slave device. If the manual mode is configured on the master device, the line rate will be set according to the fix parameter of the master device. If the automatic mode is c onfigured on the master device, the line rate will depend on the DSL line quality. 8.2.13.7 Status command The status command[...]

8.2.14 Show command The show command displays the modem IP address and active PVC settings. >> show Ethernet ip: 192.168.1.1 Subnet mask: 255.255.255.0 FUNCTION VPI/VCI CLASS LLC/VCMUX Spanning Pkt Filter Rfc1483 8/35 ubr LLC Disable ANY >> Command format: show Definitions: Ethernet ip: The device IP address. Subnet mask: Subnet mask. F[...]

Command formate: dnsrelay [setdnsip <dnsip> [<retry times>] | show] Parameter: Setdnsip: See 8.3.2.1 Show: See 8.3.2.2 8.3.2.1 Setdnsip command The setdnsip command sets the DNS-server address. > dnsrelay> setdnsip 10.0.0.50 3 Command format: dnsrelay [setdnsip <dnsip> [<retry times>] Parameter: Dnsip: IP address of th[...]

8.3.3 Ipoa command The ipoa command puts the system into the menu of connection settings of IP over ATM. >> ipoa > ipoa> Command format: ipoa [delwanip | setqos | setrip | show] Parameter: Delwanip: See 8.3.3.1 Setqos: See 8.3.3.2 Setrip: See 8.3.3.3 Show: See 8.3.3.3 8.3.3.1 Delwanip command The delwanip command serves to delete all or[...]

Note! The setqos command changes the PVC parameters, first configured by the quick command (see 8.2.9) or the setwanip command (see 8.3.3.4). If the mentioned PVC is not found, the system displays an error message. 8.3.3.3 Setrip command The setrip command sets the RIP type for the used PVC. > ipoa> setrip 8/35 1 > ipoa> Command format:[...]

8.3.3.5 Show command The show command displays the IP configuration over ATM. > ipoa> show IPoA setting: FUNCTION VPI/VCI CLASS Wan IP/MaskNum GatewayIP RIP IPoA 8/35 ubr 216.71.89.12/24 216.71.89.3 0 Command format: show Definitions: VPI/VCI: Defines the used PVC with the VPI/VCI number. Wanip/MaskNum: IP address/subnet mask GatewayIP: Gatew[...]

> lan> Command format: dhcpserver <range1 startIP> <range1 endIP> [<range2 startIP> <range2 endIP>] [<max-lease-time>] dhcpserver dns <dns ip1> [<dns ip2>] Parameter: Range1 startIP: The starting IP address of the first range. Range1 endIP: The end IP address of the first range. Range2 startIP: The st[...]

> lan> Command format: setdhcp [server|disable] Parameter: Ethernet ip: Ethernet interface IP address. Subnet mask: Ethernet interface subnet mask. DHCP current setting : DHCP server current settings. DHCP ineffective setting : DHCP server settings (server/disable). 8.3.5 List command See 8.2.5 8.3.6 Manage command See 8.2.6 8.3.7 Mode comman[...]

Command format: addpatin <pppoa|pppoe|wanip> <port>/<udp|tcp> <serverip> Parameter: Wanip: Real IP address Port The server port number, to which the access is allowed Udp|tcp Packet transmission protocols Serverip The local server address 8.3.8.2 Delpatin command The delpatin command deletes the addpatin command. > pat>[...]

No. i/f name|WanIP Port/Protocol Server IP 1 pppoa 434/udp 192.62.2.134 2 210.62.2.195 232/tcp 192.62.2.166 > pat> Command format: show Definitions: Interface: The used interface. IP address: Interface IP address. No. The table serial number. i/f name|WanIP The interface name | WAN address. Port/Protocol: Port and transmission protocol. Serve[...]

8.3.10.1 Adduser command The adduser command activates VC, assigning the VPI/VCI addresses and sets the user’s name and the password for PPP over ATM connections. > pppoa> adduser 8/35 Access chap New Password:******* Confirm password again:******* User account added successfully. > pppoa> Command format: adduser [<vpi>/]<vci[...]

8.3.10.4 Echo command The echo command enables and disables the LCP response (the process o f the control connection). LCP is used to confirm the established PPP connection, the interval time between the LCP responses can be changed. > pppoa> echo 120 > pppoa> Command format: echo <interval time> Parameter: Interval time Intervals[...]

8.3.10.7 Setrip command The setrip command sets the RIP type for the active connection of PPP over ATM. > pppoa> setrip 1 > pppoa> Command format: setrip <1|2|1&2|0> Parameter: 1: Sets RIP1. 2: Sets RIP2. 1&2: Sets RIP1 и 2. 0: RIP is not used. 8.3.10.8 Show command The show command displays the configuration of the curre[...]

8.3.12 R1483 command The r1484 command puts the system into the menu of RFC1483 encapsulation settings. >> r1483 > r1483> Command format: r1483 [delwanip <all>|[<vpi>/]<vci> | setqos [<vpi>/]<vci> <ubr|cbr| vbr(nrt)> | setrip [<vpi>/]<vci> <1|2|1&2|0> | setwanip setwanip [<vpi[...]

Parameter: VPI/VCI: Sets PVC with the VPI/VCI number. UBR: Sets the UBR priority. CBR: Sets the CBR priority. VBR: Sets the VBR priority. VBRNRT: Sets the VBR-NRT priority. 8.3.12.3 Setrip command The setrip command sets the RIP type for the used PVC. > pppoa> setrip 1 > pppoa> Command format: setrip <1|2|1&2|0> Parameter: VPI[...]

8.3.12.5 Show command The show command displays the r1483 configuration. > r1483> show RFC1483 setting: FUNCTION VPI/VCI CLASS LLC/VCMUX Wan IP/MaskNum RIP Rfc1483 8/35 ubr LLC 216.71.89.12/24 1 > r1483> Command format: show Definitions: VPI/VCI: Defines the used PVC with the VPI/VCI number. Wanip/MaskNum: IP address/subnet mask. Class:[...]

8.3.14 Restart command See 8.2.11 8.3.15 Rtable command The rtable puts the system into the menu of routing table settings. >> rtable > rtable> Command format: rtable [addiproute | deliproute | show] Parameter: Addiproute: Deletes all the connections. Deliproute: The virtual connection number, displayed by the show command. Show 8.3.15.[...]

Parameter: all: Deletes all routes from the table. number: Deletes the route with the number displayed by the show command. 8.3.15.3 Show command The show command displays the routing table. > rtable> show Routing Table: No. Destination IP SubMask Gateway IP 1 0.0.0.0 0.0.0.0 216.71.89.3 2 198.24.67.0 255.255.255.0 216.71.89.3 effective routi[...]

9 FIRMW ARE LOADING The device hardware allows to implement new possibilities and functions by updating its firmware. To facilitate the firmware update, there exists a command file. The upgrade is implemented over TFTP. It is recommended to update the firmware in the manufacturer or provider’s (supplier) service center. One should take into accou[...]

10 TECHNICAL SPECIFICA TIONS 10.1 Interfaces 10.1.1 Monitor interface Parameter Description Interface ITU-T V.24/V.28 (RS232) Transmission mode Asynchronous Interface type DCE Terminal emulation mode VT100 Transmission format 8-N-1 Flow management XON/XOFF Transmission rate 2400…57600 bit/s 10.1.2 Network management interface Parameter Descriptio[...]

For transmission rate, Kbit/s: 200 264 392 520 776 1032 1544 2056 Frequency transmission range, kHz 0…67 0…88 0…131 0…173 0…258 0…344 0…515 0…685 10.1.4 Network interface Parameter Description Transmission rate 10 Mbit/s Transmission medium UTP 10BASE-T Standard Ethernet ISO/IEC 8802-3 Bridge IEEE-802.1d Encapsulation RFC1483, RFC23[...]

10.2.1 Protection agains t dangerous affects The protection of the equipment against dangerous interfering affects meets the requirements of ITU-U K20/K.21 10.2.2 Surge safety Parameter Description Note The resistance between the ground terminal and isolated parts of the device ≤ 0,1 Ohm Insulation resistance of the device electrical circuit ≥ [...]

10.4 10.4 Guarantee The Mean Time Between Failure is not less than 3x10 4 hours. The operating lifetime is no less than 20 years. 10.5 10.5 Ph ysical dimensions Stand Alone (dimensions, weight) 220 mm х 170 mm х 40 mm, 0.5 kg Mini-Rack (dimensions, weight) 483 mm х 230 mm х 43.5 mm, 3 kg Sub-Rack (dimensions, weight) 233 mm х 220 mm х 30 mm, [...]

11 CONNECT ORS’ DESCRIPTION 11.1 SHDSL connector Type: RJ-11, 4 pin Pin Signal Description 1 NC – 2 LA,a SHDSL pair, tip 3 LA,b SHDSL pair, ring 4 NC – 11.2 Monitor connector Type: Sub-D9, female DB 9 fem a le 1 5 6 9 Pin Signal Description Note 1 NC – 2 TXD Transmit data 3 RXD Receive data 4 ALACOM Common contact of Alarm Relay For Mini-Ra[...]

9 ND_NO Non Urgent-Alarm contact, normally open For Mini-Rack units 11.3 Ethernet (10BaseT) connector Type: RJ-45 Pin Description 1 Tx+ 2 Tx- 3 Rx+ 4 NC 5 NC 6 Rx- 7 NC 8 NC 18 ............ RJ 45 11.4 Pow er connector (For MDS922AE-10BT) Type: Molex, 4 pin 43 1 2 Pin Signal Description 1 -PWR negative power supply terminal 2 PROT Grounding 3 NC –[...]

12 DESCRIPTION OF INTERF ACE CABLES 12.1 «Direct» Ethernet cable The cable contains two pairs: Side А Color Side B 1 white/orange 1 2 orange/white 2 3 white/blue 3 6 blue/white 6 The cable contains four pairs: Side А Color Side B 1 white/green 1 2 green/white 2 3 white/orange 3 4 blue/white 4 5 white/blue 5 6 orange/white 6 7 white/brown. 7 8 b[...]

12.2 Cross-over Ethernet cable The cable contains only two pairs: Side А Color Side B 1 white/orange 3 2 orange 6 3 white/blue 1 6 blue 2 The cable contains four pairs: Side А Color Side B 1 white/green 3 2 green 6 3 white/orange 1 4 blue 7 5 white/blue 8 6 orange 2 7 white/brown 4 8 brown 5 12.3 Monitor connector Device Computer DB9M DB9F DB25F [...]

13 DELIVER Y SET (see the technical passport) Typically the delivery set includes: • SHDSL modem • AC power adapter (for Stand Alone versions only) • AC power cable (for MiniRack versions only) • Ethernet cable • User Manual (in some cases can be made available on a disk or web site) Version: 1.0 Page. 88 of 95[...]

14 GLOSSAR Y DSL (digital subscriber line) Digital technology that provides high-speed data transmission over physical wiring (twisted pair), used to connect telephones. E1 Digital data rate of 2048 Kbit/s structured according to ITU-T G.704. G.703 ITU-T standard regulating electrical and mechanical specifications for co nnections. G.704 ITU-T stan[...]

International body that develops worldwide st andards for telecommunications technologies. LAN (local-area network) LANs connect workstations, servers, terminals, printers and other devices in a single building or other geographically limited area. LANs use specia l operating systems to transmit data at high speeds. Several LANs form wide area netw[...]

TDM Time Division Multiplexing SDH Synchronous Digital Hierarchy VPI Virtual Path Identificator V С I Virtual Channel Identificator Version: 1.0 Page. 91 of 95[...]

15 EXAMPLE OF NETW ORK CONFIGURA TION Consider the following example of router configuration in MDS92xxx-10BT modems. Fig. 13 shows the network structure. WAN Network 194.27.54.0/24 Network 198.24.67.0/24 Router1 198.24.67.20/24 Router2 194.27.54.10/24 Hub Hub Workstation IBM Compatible Workstation Workstation 216.71.89.12 216.71.89.3 Fig.13 networ[...]

When the following message “R1483(r)/IpoA/PPPoA(p)” appear, type “IpoA” and press “enter”. Enter the IP address, which will belong to the router. In our case, it is 198.24.67.20 with mask 255.255.255.0. The system requires to enter VPI and VCI. Type 8 and then press “enter” after it, t ype 35, and press “enter”. On request “WA[...]

Enter 216.71.89.3. Note! IP addresses of WAN interfaces must be in the address field of one network. In our case this is network 216.71.89.0 with mask 255.255.255.0. After it, on request to add next PVC, type “n” and press “enter”. Then save the configuration, and restart the modem. 15.2 Router 2 The configuration of router 2 will differ on[...]

WAN IP: 216.71.89.3 Gateway: 216.71.89.12 Now it is necessary to reinitialize router 2. After restart of the system, let us check operability of the created network. Enter the command “ping 198.24.67.20 on router 2. The configuration is completed successfully. Version: 1.0 Page. 95 of 95[...]