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admin_2
Participant

WIC-1DSU-T1 in 3640

I have a WIC-1DSU-T1 in a 3640 (IOS 12.2T). It configures fine but doesn't see the T1. I am trying to make a frac T1 (4 DSOs). I replace it with an external CSU/DSU and and use a V.35 WIC and that works. Also tried a NM-2CT1-CSU and it works too. Any suggestions to make the WIC-1DSU-T1 work? thanks

3 REPLIES 3
dathaide
Beginner

hi

does you configuration look something like this

Interface serial 0/0

service-module t1 clock source internal

service-module t1 timeslots 1-3 speed 64

service-module t1 framing esf

service-module t1 linecode b8zs

ip address 10.1.1.1 255.255.255.0

encapsulation ppp

fair-que

no shut

Not applicable

Q. service-module t1 clock source internal

A. No I rely on external timing but I just tried it for kicks. no joy

Q. service-module t1 timeslots 1-3 speed 64

A. service-module t1 timeslots 1-4 speed 64

Q.service-module t1 framing esf

A. yes

Q. service-module t1 linecode b8zs

A. yes

Q. ip address 10.1.1.1 255.255.255.0

A. yes

Q. encapsulation ppp

A. no I use HDLC

Q. fair-que

A. no

Q. no shut

A. yes

Not applicable

Not one DOA WIC but two! Didn't see any signal coming from the WIC with a TBerd

Replaced with a third WIC and it worked. thanks rt