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Connecting 2650XM - 2620 Router back to Back WIC - T1

mahesh18
Level 6
Level 6

Hi all,

I have 2650XM  router and 2620 Router

Both routers have built in WIC  T1 CSU/DSU cards

2620Router --

2620Router#sh int se0/0

Serial0/0 is down, line protocol is down

  Hardware is PQUICC with Fractional T1 CSU/DSU

  Description: DTE  side

  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation HDLC, loopback not set

  Keepalive set (10 sec)

  Last input never, output never, output hang never

  Last clearing of "show interface" counters 00:30:16

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 0 bits/sec, 0 packets/sec

     0 packets input, 0 bytes, 0 no buffer

     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

     0 packets output, 0 bytes, 0 underruns

     0 output errors, 0 collisions, 60 interface resets

     0 output buffer failures, 0 output buffers swapped out

     0 carrier transitions

     DCD=down  DSR=up  DTR=up  RTS=up  CTS=down

Config on 2620 Router  serial interface is

interface Serial0/0

description DTE  side

service-module t1 clock source line

ip address 10.10.10.2

255.255.255.252

                

service-module t1 framing esf

service-module t1 linecode b8zs

encapsulation ppp

fair-que

Hardware info of WIC  card

  WIC Slot 1:
        FT1 BT8360
        Hardware revision 1.3           Board revision E0
        Serial number     29322983      Part number    800-03279-04
        FRU Part Number   WIC-1DSU-T1= **************************************************************************

        Test history      0x0           RMA number     00-00-00
        Connector type    Wan Module
        EEPROM format version 2
        EEPROM contents (hex):
          0x20: 02 11 01 03 01 BF 6E E7 50 0C CF 04 00 00 00 00
          0x30: 70 00 00 00 02 10 07 01 FF FF FF FF FF FF FF FF

**************************************************************************************************************************************

2650XM Router

Hardware info of WIC  card

WIC Slot 0:
        FT1 BT8360
        Hardware revision 1.3           Board revision E0
        Serial number     29315221      Part number    800-03279-04
        FRU Part Number   WIC-1DSU-T1=

        Test history      0x0           RMA number     00-00-00
        Connector type    Wan Module
        EEPROM format version 2
        EEPROM contents (hex):
          0x20: 02 11 01 03 01 BF 50 95 50 0C CF 04 00 00 00 00
          0x30: 70 00 00 00 02 10 04 01 FF FF FF FF FF FF FF FF

Serial int se0/0

2650XM#sh int se0/0

Serial0/0 is down, line protocol is down

  Hardware is PQUICC with Fractional T1 CSU/DSU

  Internet address is 192.168.35.3/24

  MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation HDLC, loopback not set

  Keepalive set (10 sec)

  Last input never, output never, output hang never

  Last clearing of "show interface" counters never

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 0 bits/sec, 0 packets/sec

     0 packets input, 0 bytes, 0 no buffer

     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

     0 packets output, 0 bytes, 0 underruns

     0 output errors, 0 collisions, 2 interface resets

     0 output buffer failures, 0 output buffers swapped out

     0 carrier transitions

     DCD=down  DSR=up  DTR=up  RTS=up  CTS=down

Serial int config

interface Serial0/0

ip address 10.10.10.1 255.255.255.252

service-module t1 clock source internal
service-module t1 timeslots 1-24 speed 64                
service-module t1 framing esf
service-module t1 linecode b8zs

encapsulation ppp
fair-que

My question is that cisco website says there are two type of cable connections for this type of config --

which are  --

T1 CSU/DSU Configuration

Set one CSU/DSU to clock source internal, and the other CSU/DSU to clock source line. The linecode, framing, data-coding, and timeslots must be set the same on both CSU/DSUs.

Four-Wire 56k CSU/DSU Configuration

For my network connection which type of config i should use??

Secondly i try to connect these ports by normal crossover cable  it did not work.

So for this type of connection i know i need T1 cross over cable--  which has RJ 48 connections at both sides.

I check cable from ebay which is

RJ45 RJ48 cross over  --  will this cable work in my router to router connection.

Thanks

MAhesh

1 Accepted Solution

Accepted Solutions

Mahesh,

Yes, this would work too.  If you are close to an electronic store, you can usually pick them up at the store, but ebay is cheaper.  Get 2 or 3 6 FT cables.

What part of Canada you live in?

Thanks,

Reza

View solution in original post

5 Replies 5

Reza Sharifi
Hall of Fame
Hall of Fame

Hi Mahesh,

All you need is a T1 Cross over cable. Your modules are T1 with build in CSU/DSU.  Don't worry about the 56k CSU/DSU configuration.

You can make your own or buy one.

Here is one: 

http://www.ebay.com/itm/T1-Crossover-Cable-Cisco-WIC1-DSU-T1-Back-to-Back-5-FT-/140600458118

HTH

Hi Reza,

Thanks for quick reply.

That cable from ebay is not for shipment to canada  only USA.

Please if you can check this link

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230416770484&ssPageName=ADME:X:RTQ:US:1123

and let me know is this is also right cable?

Thanks

MAhesh

Mahesh,

Yes, this would work too.  If you are close to an electronic store, you can usually pick them up at the store, but ebay is cheaper.  Get 2 or 3 6 FT cables.

What part of Canada you live in?

Thanks,

Reza

Hi Reza,

Thanks for reply.

I will buy from Ebay --  as i could not find here in store.

I live in calagry- 

MAhesh

Hi Reza,

Many thanks again for yours great help.

Regards

Mahesh

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