Patton electronic 2120 manuale d’uso

USER MANUAL MODEL 2120 RS-232 Single P or t T erminal Server SALES OFFICE (301) 975-1000 TECHNICAL SUPPOR T (301) 975-1007 P ar t# 07M2120-UM Doc# 08302U2-001, Rev . D Revised 10/27/06 An ISO-9001 Certified Company[...]

2 T ABLE OF CONTENTS 1.0 Warranty Information ................................................................. 5 1.1 FCC Information ........................................................................... 5 1.2 CE Notice ...................................................................................... 6 1.3 Service .......................[...]

3 Modifying A User ........................................................................ 41 3.8 IP Addressing ............................................................................. 42 Unit IP Address........................................................................... 42 Serial Interface IP Address ..................................[...]

4 A.11 Power Supply Options ................................................................ 57 A.12 Temperature ............................................................................... 58 A.13 Altitude ........................................................................................ 58 A.14 Humidity ..................................[...]

5 1.0 W ARRANTY INFORMATION P atton Electronics warrants all Model 2120 components to be free from def ects, and will—at our option—repair or replace the product should it f ail within one year from the first date of shipment. This warranty is limited to def ects in w orkmanship or mater ials, and does not cov er customer damage, ab use or una[...]

6 1.2 CE NOTICE The CE symbol on your P atton Electronics equipment indicates that it is in compliance with the Electromagnetic Compatibility (EMC) directive and the Low V oltage Directive (L VD) of the European Union (EU). A Cer- tificate of Compliance is av ailable by contacting T echnical Suppor t. Note THIS DEVICE IS NO T INTENDED T O BE CONNE[...]

7 2.0 GENERAL INFORMATION Thank you f or your purchase of this P atton Electronics product. This product has been thoroughly tested and is warranted f or One Y ear par ts and labor . If any questions or prob lems arise during installation or use of this product, please do not hesitate to contact P atton Electronics T ech- nical Support at (301) 975[...]

8 • Selectable RS-232 char acter length options of 5, 6, 7, 8 • Selectable RS-232 flo w control options of none, hardware, xonxoff • Selectable RS-232 parity options of none, odd, e ven, high • Selectable RS-232 stop length options of 1, 2 • Selectable RS-232 interf ace protocol options of T elnet, Raw-TCP , SLIP , and PPP • Ability to[...]

9 • DHCP: – DHCP enable/disab le for static or dynamic IP addressing of the unit – P er mit the use of the DHCP off ered IP address in the IP address destination field – DHCP Client suppor t f or Default Gatew ay IP Forwarding/NA T • Ability to f orward IP pac kets from multiple Ethernet devices across its serial interface in both SLIP a[...]

10 System Features • Ability to displa y boot message on the serial interface • Selectable def ault gatewa y IP address f or use when the destination IP address cannot be f ound • DHCP enable/disab le for static or dynamic IP addressing of the unit • Selectable unit IP address • Ability to change f actor y assigned unit MA C Address, MA C[...]

11 • Ability to reset non-volatile configur ation parameters • Ability to remotely close the serial interface connection • Ability to FTP to a remote de vice • Ability to Ping to a remote de vice • Ability to Raw-TCP to a remote de vice • Ability to T elnet to a remote device • Ability to download softw are using FTP and write/activa[...]

12 2.3 DESCRIPTION The Model 2120 Single P or t T er minal Ser v er (see Figure 1) provides a quick, easy to use solution f or connecting traditional RS-232 terminals and de vices to the Local Ethernet/IP Networ k. The Model 2120 can also function as a very cost effectiv e single por t remote access ser v er . Serial asynchronous de vice connectivi[...]

13 The Model 2120 is initially configured via the serial interface using a dumb terminal or ter minal emulation software in VT -100 mode. The serial interf ace f actor y def ault asynchronous setting is 9600 bits/second, 8 bits per character , no par ity , and 1 stop bit. All configuration parameters can be set via the serial interface using the [...]

14 SLIP operation provides a de vice connected to the Model 2120 serial interf ace with LAN connectivity . The Model 2120 and the device con- nected to the serial interface e xchange IP packets where each IP pac ket is SLIP encapsulated. The Model 2120 uses pro xy ARP to provide the de vice connected to the serial interface with a virtual Ether net[...]

15 3.0 CONFIGURATION 3.1 CONFIGURATION SWITCHES SW1 is a set of f our inter nal DIP s witches (see Figure 2) that are used f or configuration reset purposes only . T o access s witch set SW1, use a small flat blade scre wdr iv er to open the Model 2120’s case as sho wn in Figure 3. Figure 2. Switch set SW1 location Figure 3. Opening the Model 2[...]

16 Default Settings Def ault settings f or the DIP switches are as f ollows: Detailed Switch Settings This section provides detailed inf ormation about the function of each DIP s witch and lists all possible settings . • Switch 1: Configuration Reset. Set this switch to the ON position and power cycle the unit to reset to the f actor y def ault [...]

17 management enable command is f actor y set to yes , which allows the remote configuration of the Model 2120 ov er the LAN. Model 2120 Software Command System The Model 2120 Software Command System is designed with a series of help menus and commands derived from the actual function descrip- tions. Once a session has been established with the 21[...]

18 Figure 5. Model 2120 Help Menu/Command Hierarch y[...]

19 Entering Commands Commands are e x ecuted by typing the appropriate command or com- mands at the system prompt (TS>) f ollo w ed b y a v alid entr y (if applicable) and the <Enter> ke y . If entering multiple commands, the y must be entered in hierarch y order (See “Model 2120 Help Menu/Command Hierarch y” on page 17) and separated [...]

20 3.3 DEFAULT CONFIGURATION PARAMETERS The Model 2120 software is pre-configured with the f ollowing f actor y def ault settings. EIA232 Interface Defaults • Character Length: 8 (bits) • Datarate: 9600 (bits per second) • DTE/DCE Ph ysical P or t: DCE • Flow Control: none • Inactive Timeout: 15 (minutes) • Serial Interface IP Address:[...]

21 • Connection Retr y F requency: 0 (seconds) • Local P or t: 404 • Remote IP Address: 1.1.1.8 • Remote P or t: 23 • Remote P assword: UNDEFINED (no entr y) • Remote User ID: UNDEFINED (no entr y) • Session T er mination Character: 0x04 (Control-D) System Defaults • Boot Message Displa y Enable: yes • Def ault Gatew ay IP Address[...]

22 1. V erify that the four internal DIP switches are set to the OFF position (f actor y def ault). 2. Using ribbon cable or other similar cab le , connect the serial RS-232 por t of a VT -100 ASCII terminal or similar DTE with ter minal emula- tion software to the RS-232 port of the Model 2120. 3. P ower up the emulation de vice and configure its[...]

23 7. Bef ore proceeding with the configur ation of the Model 2120 for y our application, it is suggested that the f ollowing "sho w all" commands be e x ecuted in order to view the current system, eia232, and user database configuration parameters: TS>show system all<Enter> (or "s s a<Enter>") Boot Message Disp[...]

24 TS>show eia232 ppp all<Enter> (or "s e p a<Enter>) DHCP Enable : no DHCP State : initialize DHCP Passed Lease Time (sec) : 0 DHCP Renew Lease Time (sec) : 0 DHCP Rebind Lease Time (sec) : 0 DHCP Expire Lease Time (sec) : 0 DHCP IP Address : 0.0.0.0 DHCP Subnet Mask : 0.0.0.0 DHCP Default Gateway : 0.0.0.0 DHCP Hardware Addres[...]

25 8. Y ou are now ready to configure the Model 2120 f or your application. Configuration parameters will v ar y based upon the requirements of each application. F or a detailed definition of all 2120 system commands, v alid entries, and def aults see Appendix B on page 59. Note Contact your Network Administrator if y ou have questions regarding[...]

26 F or a detailed definition of all 2120 system commands, v alid entries, and def aults see Appendix B on page 59. Note Contact your Network Administrator if y ou have questions regarding configuration parameters required f or y our application and/or LAN. 3.6 SAMPLE 2120 CONFIGURATIONS The Model 2120 f eatures and functionality allow it to oper[...]

27 Figure 6. T elnet / TCP Operation System Settings Boot Message Displa y Enable: yes Def ault Gatew ay IP Address: <IP Address of Default Gatewa y of 2120 LAN> DHCP Enable: no IP Address Configured: <IP Address Assigned by Netw ork Admin> MA C Address: <Factory Assigned> Management Enable: yes (or preferred) Management Inactive[...]

28 EIA232 Interface Settings Character Length: 8 (or setting required by serial device) Datarate: 9600 (or setting required by serial device) DTE / DCE Ph ysical P or t: dce (or setting required by serial device) Flow Control: none (or setting required by serial de vice) Inactive Timeout (min): 15 (or pref erred) IP Address Configured: <Same as[...]

29 Remote P or t: 23 Remote P assword: (UNDEFINED) Remote User ID: (UNDEFINED) Session T er mination Character: 0x04 (or pref erred) User Database Settings user database empty! (or add users and corresponding pass words and privileges) RawTCP Operation In the typical RawTCP application (see Figure 7), the user has a need to connect a network enable[...]

30 Figure 7. Raw - TCP Oper ation System Settings Boot Message Displa y Enable: yes Def ault Gatew ay IP Address: <IP Address of Default Gatewa y of 2120 LAN> DHCP Enable: no IP Address Configured: <IP Address Assigned by Netw ork Admin> MA C Address: <Factory Assigned> Management Enable: ye s (or pref erred) Management Inactive [...]

31 EIA232 Interface Settings Character Length: 8 (or setting required by serial device) Datarate: 9600 (or setting required by serial device) DTE / DCE Ph ysical P or t: dce (or setting required by serial device) Flow Control: none (or setting required by serial device) Inactive Timeout (min): 0 IP Address Configured: <Same as System IP Address[...]

32 Remote IP Address: <IP Address of Software App. Host> Remote P or t: <TCP Port Number of Software App. Host> Remote P assword: UNDEFINED (or required setting) Remote User ID: UNDEFINED (or required setting) Session T er mination Character: 0x04 (or pref erred) User Database Settings user database empty! (or add users and correspondin[...]

33 Figure 8. PPP T er minal Server System Settings Boot Message Displa y Enable: no Def ault Gatew ay IP Address: <IP Address of Default Gatewa y of 2120 LAN> DHCP Enable: no IP Address Configured: <IP Address Assigned by Netw ork Admin>[...]

34 MA C Address: <Factory Assigned> Management Enable: ye s (or pref erred) Management Inactive Timeout (min): 15 (or preferred) Prompt: TS> (or preferred) Subnet Mask Configured: <Subnet Mask of 2120 LAN> EIA232 Interface Settings Character Length: 8 (or setting required by modem) Datarate: 115200 (or setting required by modem) DTE[...]

35 User A uthentication Protocol: pap EIA232 Raw-TCP/T elnet Settings Connection F rom Local Enable: no Connection F rom Remote Enable: yes Connection Retr y F requency (sec): 0 Local P or t: 404 (or required setting) Remote IP Address: 1.1.1.8 Remote P or t: 23 Remote P assword: (UNDEFINED) Remote User ID: (UNDEFINED) Session T er mination Charact[...]

36 of application, the SLIP connection is usually terminated once the user is finished accessing the LAN/Internet. Figure 9. SLIP T er minal Server System Settings Boot Message Displa y Enable: no Def ault Gatew ay IP Address: <IP Address of Default Gatewa y of 2120 LAN> DHCP Enable: no[...]

37 IP Address Configured: <2120 Unit IP Address Assigned by Netw ork Admin> MA C Address: <Factory Assigned> Management Enable: ye s (or pref erred) Management Inactive Timeout (min): 15 (or preferred) Prompt: TS> (or pref erred) Subnet Mask Configured: <Subnet Mask of 2120 Unit LAN> EIA232 Interface Settings Character Length[...]

38 User A uthentication Protocol: none EIA232 Raw-TCP/T elnet Settings Connection F rom Local Enable: no Connection F rom Remote Enable: yes Connection Retr y F requency (sec): 0 Local P or t: 404 (or required setting) Remote IP Address: 1.1.1.8 Remote P or t: 23 Remote P assword: (UNDEFINED) Remote User ID: (UNDEFINED) Session T er mination Charac[...]

39 Privilege Each user in the 2120 user database is assigned a privilege that identi- fies how each user ma y inter act with the Model 2120. The three types of privileges that exist in the Model 2120 are defined as f ollows: User - The User privilege per mits a user to access only the serial interf ace. If the Model 2120 is configured for T elne[...]

40 Total Users = 3 TS> Deleting All Users Deleting all users is accomplished by e xecuting the f ollowing commands at the 2120 command system prompt: TS>configure userdatabase deleteall<Enter> TS>configure activate<Enter> activate is complete! V erifying that all active users hav e been deleted from the user database is accompl[...]

41 --> User Database <-- john,123abc,user tom,98lk12,both Total Users = 2 TS> Modifying A User Modifying a user's pass word or privilege is accomplished by e xecuting the f ollowing commands at the 2120 command system prompt: TS>show userdatabase all<Enter> --> User Database <-- john,123abc,user tom,98lk12,both Total Us[...]

42 3.8 IP ADDRESSING Unit IP Address The IP address used to manage the Model 2120 unit can be configured statically or dynamically . The Model 2120 is defaulted to use DHCP (Dynamic Host Configuration Protocol) to dynamically obtain the unit IP address ov er the LAN from an active DHCP server . When using DHCP , the 2120 sends the DHCP ser v er M[...]

43 F or PPP applications that require a static IP address f or the ser ial inter- f ace, an assigned IP address is obtained from y our Network Administra- tor , and is configured by e xecuting the f ollowing commands at the 2120 command system prompt: TS>configure eia232 interface ipaddrcfg <assigned IP address><Enter> TS>configu[...]

44 Subnet Mask The Subnet Mask settings that correspond with the 2120 unit and serial interf ace IP addresses should be configured with the appropriate Subnet Mask f or the LAN where the IP addresses reside. The Subnet Mask f or the Model 2120 unit is configured by e xecuting the f ollowing commands at the 2120 command system prompt: TS>config[...]

45 activate is complete! TS> Windows Name Server (WINS) The Model 2120 suppor ts WINS address exchange with the PPP de vice. Primar y and secondar y WINS addresses can be configured for the PPP client de vice. The pr imary and secondar y WINS addresses are config- ured by e x ecuting the f ollowing commands at the 2120 command system prompt: T[...]

46 TS>configure eia232 ppp peernsaddruseena yes TS>configure activate activate is complete! TS> 3.10 SOFTWARE INSTALLATION INSTRUCTIONS Because the Model 2120 stores its software in FLASH Memory , obtain- ing the latest software release is both quic k and easy . Using the inte- grated FTP (File T ransf er Protocol) client, new softw are re[...]

47 5. If prompted f or P assword, type: < assigned Password > ” and press <Enter> . 6. At the FTP prompt, type: get < current 2120 software file- name > and press <Enter> . 7. If completed, type: quit and press <Enter> to return to the TS prompt 8. At the TS prompt, type: <activateimage> and press <Enter>[...]

48 5. Enter your FTP P assword b y typing: < your e-mail address > and pressing <Enter> . 6. At the FTP prompt, type: get <current 2120 software file- name> and press <Enter> . 7. When completed, type: quit and press <Enter> to return to the TS prompt. 8. At the TS prompt, type: <activateimage> and press <Ente[...]

49 4.0 INSTALLATION Once the Model 2120 is configured, it is ready to connect to the serial interf ace of the RS-232 de vice, to the Ether net interf ace, and to the power source . The Model 2120 is designed to connect an asynchronous RS-232 de vice to other de vices via the LAN/10Base-T interface. This section describes how to install the 2120. 4[...]

50 A C Po wer Supply (100-240V AC) The Model 2120/??/UI uses a +5VDC , 2A universal input, po wer supply that is equipped with a male IEC-320 power entry connector and sup- por ts a voltage r ange of 100-240V A C. This po w er supply connects to the Model 2120 by means of a cannon jac k on the rear panel. There are a variety of domestic and interna[...]

51 5.0 OPERATION After configuring and installing the Model 2120, you are ready f or opera- tion. This section describes the operation of the Model 2120 Single P or t T er minal Server . 5.1 LED STATUS INDICATORS The Model 2120 f eatures se ven top panel LEDs and two rear panel LEDs. The figures below show the their position. A descr iption of ea[...]

52 T op Panel LEDs Figure 13 shows the location of the LEDs on the top panel; T ab le 3 lists descriptions for each LED . Figure 13. Model 2120 T op Panel LEDs T able 2: Model 2120 Rear P anel LED definitions LED Description Link Glows green to indicate that the Ethernet signal from the LAN is active . Status Blinks yello w indicating the system s[...]

53 Note The DCD LED is an indicator of whether the 2120 is configured for DCE or DTE oper ation. When configured f or DCE, the DCD LED will glow constantly e xcept for when a session is being ter- minated. When configured f or DTE, the DCD LED will only glo w when a connection is established with the serial interf ace. 5.2 FLOW CONTR OL AND SESS[...]

54 trolled by tw o ASCII characters, 0x11 (XON) and 0x13 (XOFF). These characters are fix ed and not configurable in the Model 2120. The XON and XOFF characters are simply sent through the data stream, in other words, the y look like data. T o stop receiving data, XOFF is sent to the sender and the sender stops sending data until it receives an X[...]

55 EIA232 Connection Closure The "eiaconclose" allows an administrativ e user to manually disconnect or close a user connection on the Model 2120 serial interface . The f ol- lowing illustrates ho w to issue the "eiaconclose" command: TS> eiaconclose<Enter> (or "e<Enter>") EIA connection close complete! [...]

56 Raw-TCP The "ra wtcp" command allows the Model 2120 to estab lish a Raw-TCP session with a remote IP de vice suppor ting TCP . The following illustr ates how to issue the "ra wtcp" command: TS> rawtcp <IP address of remote device><Enter> (or "r <IP address of remote device><Enter>") connec[...]

57 APPENDIX A MODEL 2120 SINGLE PORT T ER MINAL SERVER SPECIFICATIONS A.1 SERIAL INTERFACE DB-25 male or f emale, DB-9 male or f emale (RJ-45F jack with 6" RJ-45 to DB-9 adapter cable), and RJ-45 Male connector options A.2 SERIAL T RANSMISSION RS-232 Asynchronous, 50 to 115.2 kbps (softw are selectable) A.3 DCE/DTE DCE or DTE (software selecta[...]

58 A.12 T EMPERATURE 32–122°F (0–50°C) A.13 ALTITUDE 0 to 15,000 f eet (0 to 4,572 meters) A.14 HUMIDITY Up to 95% non-condensing A.15 DIMENSIONS 3.5L X 2.1W X 0.78H in. (9.0L X 5.3W X 1.9H cm) A.16 W EIGHT 0.2 lbs (0.09 kg)[...]

59 APPENDIX B MODEL 2120 SINGLE PORT T ER MINAL SERVER SOFTWARE COMMAND DEFINITIONS In the commands defined below , X = V alid entr y/setting for that configu- ration parameter . Note Contact your Network Administrator if y ou have questions regarding configuration parameters required f or y our application and/or LAN. B.1 ACTIVATE IMA G E COMMA[...]

60 Note MUST be entered immediately after each “configure” command string to activate configuration changes . configure clear Clears changes in configuration parameters prior to “activating” them and re verts back to the pre vious settings. Accessibility: N/A Def ault: N/A V alid Entr ies: N/A Note Once changes in parameters are activ a[...]

61 configure eia232 interface dtedce X Sets the RS232 Ph ysical P or t of the serial interface. Accessibility: READ/WRITE Def ault: DCE V alid Entr ies : DCE, DTE configure eia232 interface flowcontr ol X Sets the RS-232 Flow Control of the serial interf ace. Accessibility: READ/WRITE Def ault : none V alid Entr ies: none, hardw are, xonxoff con[...]

62 configure eia232 interface rxbuflen X Receive b uffer length <num char>. configure eia232 interface stoplength X Sets the RS-232 Stop Length (in bits) of the serial interface . Accessibility: READ/WRITE Def ault: 1 (bit) V alid Entr ies: 1, 2 configure eia232 interface subnetcfg X Sets the Subnet Mask used to conduct PPP or SLIP operat[...]

63 Note When set to YES, the 2120 will automatically request and use an IP address assigned by the DHCP Server f or PPP opera- tions. This f eature will not function unless there is an active DHCP Server on the LAN. configure eia232 ppp fcslength X FCS length configure eia232 ppp dhcpwaddr X DHCP hardwar e address configure eia232 ppp peeripaddr[...]

64 Accessibility: READ/WRITE Def ault: 0.0.0.0 V alid Entr ies: Any in IP address f or mat. configure eia232 ppp rxaccm X Receive async contrl character map configure eia232 ppp txaccm X T ransmit async contrl character map configure eia232 ppp userauthprot X P er mits the use of P AP as a user authentication protocol with PPP oper- ations. Acce[...]

65 Def ault: 0 (Disabled) V alid Entr ies: 0–65535 Note T o activate the auto connection feature , this must be set to any number (up to 65535) other than 0, “configure eia232 rawtcp_telnet confromlocena” must be set to YES, and a valid IP address must be entered into “configure eia232 rawtcp_telnet remip”. configure eia232 rawtcp_teln[...]

66 Accessibility: READ/WRITE Def ault: UNDEFINED (no entr y) V alid Entr ies: Any alphanumeric entry with a str ing size up to 32 b ytes configure eia232 rawtcp_telnet rem userid X Sets/activates the User ID sent with automatic connection requests to a remote de vice/application ov er the LAN. Accessibility: READ/WRITE Def ault: UNDEFINED (no entr[...]

67 Def ault: yes V alid Entr ies: yes , no Note Set to NO if the serial device is aff ected/confused by the boot message. configure system defgatewa yipddr X Sets the IP address of the def ault gatew ay . Accessibility: READ/WRITE Def ault: 0.0.0.0 (disabled) V alid Entr ies: Any in MA C address format Note The 2120 will attempt to find and use t[...]

68 configure system manena X P er mits access to the Model 2120 Software Command System via a remote T elnet session over the LAN. Accessibility: READ/WRITE Def ault: yes V alid Entr ies: yes , no Note If disabled, access to the Model 2120 Softw are Command Sys- tem can is only possible via the serial interf ace. configure system maninactiveto X [...]

69 configure userdatabase createuser X Creates new users in the user database b y specifying a user name, pass word, and privilege. Accessibility: READ/WRITE Def ault: user database empty! V alid Entr ies: user name (up to 32 characters), pass word (up to 32 char- acters), privilege (user , admin, both) configure userdatabase deleteall Deletes th[...]

70 B.6 PING COMMANDS ping Enables the 2120 to ping other de vices on the LAN. Accessibility: N/A Def ault: N/A V alid Entr ies: N/A B.7 RA WTCP COMMANDS rawtcp Enables the 2120 to initiate a Ra w-TCP session with remote devices ov er the LAN. Accessibility: N/A Def ault: N/A V alid Entr ies: N/A B.8 SHO W COMMANDS show Returns the Show Help Menu. A[...]

71 show eia232 interface charlength Returns current RS-232 Character Length setting. Accessibility: READ ONL Y show eia232 interface curuserlogged Returns the user name of the current active user on the serial interface . Accessibility: READ ONL Y show eia232 interface datarate Returns current RS-232 Datarate setting. Accessibility: READ ONL Y show[...]

72 show eia232 interface parity Returns current RS-232 Parity setting. Accessibility: READ ONL Y show eia232 interface pr otocol Returns current RS-232 Protocol setting. Accessibility: READ ONL Y show eia232 interface rxb uflen Receive buffer length <num char> show eia232 interface rxidlechartrig Receive idle char for trig <num char> s[...]

73 show eia232 ppp Returns the PPP Help Menu. Accessibility: N/A Def ault: N/A V alid Entr ies: N/A Note Needs to be entered first in all "show eia232 ppp" command strings. show eia232 ppp all Returns all current PPP settings. Accessibility: READ ONL Y show eia232 ppp dhcpena Returns current PPP related DHCP enable setting. Accessibility[...]

74 address will e xpire. Accessibility: READ ONL Y Def ault: 0 (seconds) P ossible V alues: 0-65535 show eia232 ppp dhcpipaddr Returns the current PPP related IP address obtained from the active DHCP Ser v er . Accessibility: READ ONL Y Def ault: 0.0.0.0 P ossible V alues: Any in IP address f or mat show eia232 ppp dhcpsubnet Returns the current PP[...]

75 Accessibility: READ ONL Y Def ault: 0 P ossible V alues: 0 to 4294967296 Note This number increments with each LCP Echo Requests received from the PPP client. show eia232 ppp peeripaddruseena Returns the current setting of the Peer IP Addressing Use Enab le fea- ture. Accessibility: READ ONL Y show eia232 ppp peernsaddruseena Returns the current[...]

76 interf ace. Accessibility: READ ONL Y show eia ppp rxaccm Receive Async-Control Character Map show eia ppp txaccm T ransmit Async-Control Character Map show eia232 ppp userauthpr ot Returns the current User Authentication Protocol setting. Accessibility: READ ONL Y show eia232 ra wtcp_telnet Returns Raw-TCP/T elnet Help Menu. Accessibility: N/A [...]

77 show eia232 ra wtcp_telnet remip Returns current Remote IP Address setting. Accessibility: READ ONL Y show eia232 ra wtcp_telnet remport Returns current Remote Port setting. Accessibility: READ ONL Y show eia232 ra wtcp_telnet rempwd Returns current Remote Pass word setting. Accessibility: READ ONL Y show eia232 ra wtcp_telnet remuserid Returns [...]

78 show system all Returns all current System settings. Accessibility: READ ONL Y show system bootmessdispena Returns current Boot Message Display Enable setting. Accessibility: READ ONL Y show system defgate way active Default Gateway Active show system defgate waycfg Default Gateway Configured show system dhcpena Returns current DHCP Enable sett[...]

79 show system dhcpe xpiretime Returns when (in seconds) the lease on the current IP address will e xpire. Accessibility: READ ONL Y Def ault: 0 (seconds) P ossible V alues: 0–65535 show system dhcpipaddr Returns the current unit IP address obtained from the active DHCP Ser v er . Accessibility: READ ONL Y Def ault: 0.0.0.0 P ossible V alues: Any[...]

80 show system maninactiveto Returns current management inactive timeout setting. Accessibility: READ ONL Y show system pr ompt Returns current system command prompt setting. Accessibility: READ ONL Y show system subnetactive Returns current active Subnet Mask f or the Model 2120 unit. Accessibility: READ ONL Y show system subnetcfg Returns current[...]

81 APPENDIX C PIN CONFIGURATIONS EIA - 232 EIA - 574 EIA - 561 DIRECTION DCE ST ANDARD SETTING DIRECTION 1 - (FG) Frame Ground ------ 2 - (TD) T ransmit Data Input 3 - (RD) Receive Data Output 4 - (RTS) Request to Send Input 5 - (CTS) Clear to Send Output 6 - (DSR) Data Set Ready Output 7 - (SG) Signal Ground ------ Input Data T erm. Ready (DTR) - [...]

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