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3Com Router 3000 Series Manual Download Page 29

Figure 15   

120-ohm 4E1 Conversion Cable

Figure 16   

75-Ohm 4E1 Conversion Cable

Table 20 lists E1 cable pinouts.

Table 20   

E1 Cable Pinouts 

DB15

BNC (75-ohm coaxial 
cable)

RJ-45 (120-ohm twisted pair)

9

Tx Tip

Tx Tip

1

Tx Tip

2

Tx Ring

Tx Ring

2

Tx Ring

10

Tx Shield

-

3

Tx Shield

8

Rx Tip

Rx Tip

4

Rx Tip

3Com Router Release Notes for V1.20

29

Summary of Contents for Router 3000 Series

Page 1: ...Router3000 5000 Series Release Notes for V1 20 http www 3com com Part No 10014296 Published January 2004...

Page 2: ...agent that can be upgraded using the command line interface The software agent that is initially provided with the routers does not fully support GRE L2TP SSH IPSec or SNMPv3 To download a software ag...

Page 3: ...rComRef pdf Download the 3Com Router Configuration Guide from http support 3com com infodeli tools routers 3com_configuration_guide pdf Download other current software updates and release notes from h...

Page 4: ...de pad reverse telnet no negotiation and reverse telnet break on ip respectively 1 1 2 SNMP Symptom Solution Routers are not recognized by Network Management applications such as 3Com Network Supervis...

Page 5: ...ll other routers will synchronize with the Master Clock if they are defined as peers On the Router 5680 the T3 E3 MIMs may sometimes not be recognized by the system upon DISPLAY VERSION Do not place t...

Page 6: ...reboot the router and undo shutdown on the physical interfaces 1 1 6 Network Protocol Symptom Solution IGMP query timer defaults to 60 Set the query timer manually to 125 Naming inconsistency with int...

Page 7: ...5 Authentication use the default non standard value This is the most common Routing does not function correctly in a virtual template with MP and OSPF configuration When using MP with OSPF you must co...

Page 8: ...s message Only one security association is used for each ACL incompatible with per rule implementation Create one separate ACL for each permit statement in the third party access list To telnet or SSH...

Page 9: ...constant to its default use the wred weighting constant 9 command The undo wred ip precedence value command will not execute To restore the wred ip precedence parameters to the default use the follow...

Page 10: ...es are no longer reversed on RMON Matrix DS tables BRI interfaces support ISDN protocol types National ISDN and AT T 5ESS Lucent 5E MTU size can now be changed from the default of 1500 Toggling route...

Page 11: ...New Command Enable the option negotiation towards the Telnet client terminal telnet refuse negotiation reverse telnet refuse negotiation Disable the option negotiation towards the Telnet client undo t...

Page 12: ...ursor one character left Ctrl F Move the cursor one character right Ctrl H Erase the character left of the cursor Ctrl Z Return to the system view Ctrl C Don t try to connect any more Ctrl Exit telnet...

Page 13: ...tion entering the hotkey will clear all the input characters and displaying the command associated with the hotkey on the screen This undertaking is equal to the operations of deleting all the input c...

Page 14: ...h X 21 Support 4 Port E1 CE1 PRI MIM 1 Port Channelized E3 MIM 1 Port Channelized T3 MIM Router 3015 Figure 1 illustrates the Router 3015 router Figure 1 Router 3015 Figure 2 illustrates the back pane...

Page 15: ...s of the plastic panel 251mm X 42 5 mm X 187mm 9 9in X 1 7in X 7 4in Weight 0 75kg 1 65lb Operating temperature 0 to 40C 32 to 1040F Operating humidity 5 to 85 noncondensing Table 2 Router 3015 LEDs L...

Page 16: ...system is incorrectly working Table 2 Router 3015 LEDs continued LED Description Table 3 Attributes of the Console Port Attribute Description Connector RJ45 Interface standard Asynchronous EIA TIA 232...

Page 17: ...operating mode V 24 EIA TIA 232 V 35 X 21 V 24 EIA TIA 232 DTE DCE DTE DCE DTE DCE Minimum baud rate bps 1200 1200 1200 1200 300 Maximum baud rate bps 64 k 2 048 M 2 048 M 2 048 M 115 2 k Services Le...

Page 18: ...2 port ISDN BRI U SIC Services ISDN ISDN additional services Multi subscriber number Subaddress Backup Table 7 Attributes of the ISDN U Port continued Attribute Description Table 8 Features of the 2...

Page 19: ...hing other connectors and damaging the interface card or the router host 3 Confirm the type of the ISDN line provided by the ISDN provider 4 Connect the cable Directly insert the cable with ferrite co...

Page 20: ...onous Serial Interface Module with X 21 Features Table 10 lists features of the 4 port synchronous asynchronous serial module with X 21 Table 10 Features of the 4 Port Synchronous Asynchronous Serial...

Page 21: ...e not automatically provided so you must order one with your 4 port synchronous asynchronous serial module with X 21 support V 24 RS232 DTE Cable V 24 RS232 DCE Cable V 35 DTE Cable V 35 DCE Cable X 2...

Page 22: ...8 V 24 DCE Cable Table 12 V 24 DTE Cable Pinouts DB28 Signal Signal direction DB25 male Signal 6 GND 7 Circuit GND 10 MODE_DCE 7 MODE0 21 GND 1 Shield GND 1 TXD 2 TXD 9 RXD 3 RXD 13 RTS 4 RTS 23 CTS...

Page 23: ...7 MODE0 21 GND 1 Shield GND 19 RXD 2 TXD 1 TXD 3 RXD 23 CTS 4 RTS 13 RTS 5 CTS 25 DSR 20 DTR 27 DTR 6 DSR 15 TXCE 17 RXC 3 TXC 15 TXC 17 RXC 24 ETC 11 DCD 8 DCD 22 LL 18 LTST Shielding shell Core shi...

Page 24: ...TE 11 DCD F RLSD 22 LL J LL Shielding shell Core shielding layer Core shielding layer Shielding shell Table 15 V 35 DCE Cable Pinouts DB28 Signal Signal direction 34PIN female Signal 6 GND A Circuit G...

Page 25: ...yer Shielding shell Table 16 X 21 DTE Cable Pinouts DB28 Signal Signal direction DB15 male Signal 6 GND 8 Circuit GND 10 MODE_DCE 9 MODE2 21 GND 1 Shield GND 13 RTS 3 Control 14 RTS 10 Control 23 CTS...

Page 26: ...of the peer and so on the signaling criterion required by the access equipment baud rate and synchronous clock To connect cables to the 4 port synchronous asynchronous serial module with X21 1 Power...

Page 27: ...ve 4 Port E1 CE1 PRI MIM The main function of the 4 port E1 CE1 PRI module is to implement the transceiving and processing of E1 data streams In addition it provides access to CE1 and implements the I...

Page 28: ...75 ohm 4E1 conversion cable bears the label 4E1 75Ohm CAB The 75 ohm 4E1 conversion cable uses 8 core coaxial cables but a 120 ohm 4E1 conversion cable uses 4 twisted pair cables Both the 75 ohm 4E1...

Page 29: ...ion Cable Table 20 lists E1 cable pinouts Table 20 E1 Cable Pinouts DB15 BNC 75 ohm coaxial cable RJ 45 120 ohm twisted pair 9 Tx Tip Tx Tip 1 Tx Tip 2 Tx Ring Tx Ring 2 Tx Ring 10 Tx Shield 3 Tx Shie...

Page 30: ...ived training should not change the position of DIP switch 15 Rx Ring Rx Ring 5 Rx Ring 7 Rx Shield 6 Rx Shield Table 21 4E1 Conversion Cable Pinouts DB25 DB15 Serial number Pinout Signal Pinout Signa...

Page 31: ...E1 CE1 PRI module to ON so the interface resistance is 75 ohm If the resistance of the interface in the remote device is 120 ohm select the E1 120 ohm balanced twisted pair cable and 120 ohm 4E1 conv...

Page 32: ...ohm interface you should use 75 ohm to 120 ohm converter or use a 120 ohm cable instead If you are using a 120 ohm balanced twisted pair cable and You do not need to extend the E1 cable connect the RJ...

Page 33: ...roup rate of E system in the TDM system that is 34 368Mbps An E3 channel can be channelized into 16 E1 channels through the demultiplexing processes of E23 and E12 with each E1 channel supporting both...

Page 34: ...of 75ohm unbalanced coaxial cables to connect the peer device Figure 21 E3 T3 cable Note 1 The 1 port channelized E3 and 1 port channelized T3 modules use the same E3 T3 cable Supported network proto...

Page 35: ...e 1 port channelized E3 module OFF means that faults occurred to the link and the signal synchronization failed In this case check the line 1 Port Channelized T3 MIM The main functions of the 1 port c...

Page 36: ...er to 1 Port Channelized E3 MIM Table 25 1 Port Channelized T3 Module Features Attribute Description Connector SMB Number of connectors 2 Interface standard G 703 G 704 G 752 Interface rate 44 736Mbps...

Page 37: ...3Com Router Release Notes for V1 20 37...

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