Patton electronic 2701RC manuale d’uso

USER MANU AL MODEL 2701RC Series NetLink-E1™ E1/Fractional E1 CSU/DSU Rack Card SALES OFFICE (301) 975-1000 TECHNICAL SUPPORT (301) 975-1007 http://www .patton.com Part# 07M2701RC-B Doc# 086131UB Revised 03/09/01 CERTIFIED CERTIFIED An ISO-9001 Certified Company[...]

1 2 T ABLE OF CONTENTS Section Page 1.0 W arranty Information .............................................................2 1.1 W arranty Statement 1.2 FCC Information 1.3 Service Information 2.0 General Information ...............................................................4 2.1 Features 2.2 General Product Description 3.0 Configuration .....[...]

4 cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the fol- lowing measures: • Reorient or relocate the receiving antenna • Increase the separation between the equipment and receiver • Connect th[...]

5 6 3.0 CONFIGURA TION The 2701RC features configuration capability via hardware DIP switches, a software control port, or SNMP through the 1001MC. This section describes all possible hardware and software switch configura- tions of the network connection. 3.1 DIP SWITCH CONFIGURA TION The Model 2701RC has two eight bit DIP switches and two rotary [...]

7 S1-2 and S1-3 CLOCK MODES Set switch S1-2 and S1-3 to determine the 2701RC’s transmitter timing. Network Clock T ransmitter timing is derived using the received line signal (received recovered) from the network. Internal Clock T ransmitter timing is derived from an internal clock source. External Clock T ransmitter timing is derived from DTE te[...]

9 10 SWITCH S2-2: CRC-4 MUL TIFRAME In framed mode, S2-2 is used for CRC-4 MF . When CRC-4 is enabled, the unit monitors the incoming data stream for CRC-4 errors. It trans- mits CRC-4 error counts to the transmitting unit.. When using timeslot zero (TS0), excessive errors may cause loss of frame or loss of sync. If CRC-4 MF is used, both units mus[...]

11 12 3.2 CONFIGURING THE REAR INTERF ACE CARD The Model 2701RC Series has five interface card options: the Model 1001RCM12548C (DB-25/RJ-48C), the Model 1001RCM13448C (M/34/RJ-48C), the Model 1001RCM1 1548C (DB- 15/RJ-48C), the Model 1001RCM1 1575 (DB-15/Dual BNC). Each of these options supports one DTE interface connection and one 4-wire line con[...]

13 14 The table below provides an overview of interface strap functions for the rear interface cards. Following the table overview are detailed descriptions of each strap’s function. DTE Shield (DB-25 Pin 1) & FRGND (JB3) In the connected position, this strap links DB-25 pin 1 & frame ground. In the open position, pin 1 is disconnected fr[...]

15 16 In the connected position, this strap links DB-15 pin 1 & frame ground. In the open position, pin 1 is disconnected from frame ground. JB3 Position 1&2 = DTE Shield (Pin 1) and FRGND Connected Position 2&3 = DTE Shield (Pin 1) and FRGND Not Connected SGND & FRGND (JB4) In the connected position, this strap links DB-15 pin 8 (S[...]

17 18 3.3 VT -100 SOFTW ARE CONFIGURA TION This section describes the VT -100 configuration using a 1001CC. For information on configuration using SNMP through the 1001MC, please refer to the 1001MC user manual. The NetLink-E1™rack card features a VT -100 menu-driven system that may be used for local configuration and management. Cards are config[...]

19 20 The password prompt will be displayed as shown below . . 6) Note: The password is case sensitive. T ype the password and press <Enter>. The factory default password for the unit is: patton NOTE: If the entry is incorrect, the password screen will clear and prompt you again for the correct password. The password you enter will not be sho[...]

21 22 The Main Menu options are briefly described below . System Configuration options allow you to change various aspects of the Model 2701RC operation, e.g., framing, line coding, and aggregate bandwidth. System Diagnostics/Statistics options allow you to monitor the network performance, initiate V .54 loops, local loops, and send test patterns. [...]

23 24 Line Coding : HDB3 (default) Options: AMI, HDB3 HDB3: In this line coding, the transmitter substitutes a deliberate bipolar violation when excessive zeros in the data stream are detected. The receiver recognizes these special violations and decodes them as zeros. This method enables the network to meet minimum pulse density requirements. Unle[...]

25 26 CAS MF Setting : Disabled (default) Options: Enabled, Disabled CAS MF: CAS multiframe uses T imeslot 16 (TS16) to send multi- frame (MF) alignment data. In CAS MF , a MF is defined as 16 frames, where a frame consists of 32 64kb/s timeslots, num- bered 0 to 31. TS16 of the first frame in the MF contains the CAS MF alignment word in the upper [...]

27 28 Front Panel Switches: enabled (default) Options: enabled, disabled As the Front Panel Switches may be inadvertently toggled, or in the event that the end-user may not need to use the switches, the installer may disable the front panel switches. Set Switch S2-6 to determine whether the front-panel toggle switches are enabled or disabled. S2-6 [...]

29 30 Tx1s If the remote Model 2701RC responds to the local Model 2701RCs terminate loopback request, the local unit then sends an all ones pattern before returning to the Idle state TxP The Model 2701RC is sending a test pattern while in T est Mode IdlP The Model 2701RC is sending a test pattern in place of data. The Model 2701RC is not in test mo[...]

31 32 3.2.4 Unit Options The Unit Options screen looks like this (factory default): Header Line 1 & Header Line 2 Headers 1 and 2 are provided for easy identification of your unit after installation. Y ou may want to give each unit a unique name via the header lines to help distinguish one unit from another . Y ou can enter a header up to 40 le[...]

33 34 Service Information If you need to contact us for help, you can view the Service Information screen. Here is what it looks like: 4 . 0 I N S T A L L A T I O N This section describes the functions of the Model 1001R14 rack chassis, tells how to install front and rear Model 2701RC Series cards into the chassis, and how to connect to the twisted[...]

36 Powering up Y our 1001R14 Rack The power supplies that come with your 1001R14 rack system are equipped with a power entry connector on the rear power supply card. The power supplies are Hot-Swappable , so you are not required to remove the cards from the rack while applying power to the system. NOTE: Please refer to the Model 1001R14 Series User[...]

38 37 4.5 CONNECTING TO A DCE DEVICE The rear interface cards on most interface modules are hard wired as DC E . Therefore, you must use a null modem cable when con- necting to a modem, multiplexer or other DCE device. This cable should be of the shortest possible length--we recommend 6 feet or less. When purchasing or constructing a null modem int[...]

40 status of the transmit clock. ALM The alarm LED indicates the presence of a Blue or Y ellow Alarm, or Out of Frame con- dition. The ALM LED will blink on every half- second. Alarms may occur due to: • Loss of Synchronization • Loss of Frame • AIS (Blue Alarm) • RAI (Y ellow Alarm) ERR The error LED indicates various error condi- tions, i[...]

41 2. V erify that the data terminal equipment is operating properly and can be used for a test. 3. Perform a V .52 BER (bit error rate) test as described in Section 5.3 . If the BER test equipment indicates no faults, but the data terminal indicates a fault, follow the manufactur- er s checkout procedures for the data terminal. Also, check the int[...]

43 44 T o perform a V .52 test, follow these steps: 1. Activate the local loopback or remote loopback diagnostic. 2. Activate the test pattern. This may be done in one of two ways: a. Enter T est Pattern from the System Diagnostics/Statistics menu and toggle the <Spacebar> until the desired test pattern appears. One of two result codes will a[...]

45 APPENDIX B P A TTON NETLINK-E1™ MODEL 2701RC CABLE RECOMMENDA TIONS The Patton NetLink E1™ Series has been performance tested by Patton technicians using twisted-pair cable with the following charac- teristics: W ire Gauge Capacitance Resistance 19 A WG 83nf/mi or 15.72 pf/ft. .0163 Ohms/ft. 22 A WG 83nf/mi or 15.72 pf/ft. .0326 Ohms/ft. 24 [...]

47 APPENDIX D P A TTON NETLINK-E1™ MODEL 2701RC E1 INTERF ACE PIN ASSIGNMENT RJ-48C E1 (DS0) Network Interface (Female Modular Jack) Pin # Signal 1 RX Data (TIP 1) 2 RX Data (RING1) 4 TX Data (TIP) 5 TX Data (RING) APPENDIX E P A TTON NETLINK-E1™ MODEL 2701RC V .35 INTERF ACE PIN ASSIGNMENT M/34 Connector , T erminal Interface Pin # Signal A GN[...]

49 APPENDIX E (continued) P A TTON NETLINK-E1™ MODEL 2701RC EIA-530 INTERF ACE PIN ASSIGNMENT DB-25 Female Connector , T erminal Interface Pin # Signal 1 FG (FrameGround) 2 TD (T ransmit Data-A, DTE Source) 3 RD (Receive Data-A, DCE Source) 4 RTS (Request to Send-A, DTE Source) 5 CTS (Clear to Send-A, DCE Source) 6 DSR (Data Set Ready-A, DCE Sour[...]