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D. Pin Assignments
D-4
February 2001 3160-A2-GB21-90
MODEM Port Interface
The integral modem port connector is a 4-position, RJ11C-like modular jack
(Table D-3, Modem Port Interface).
The integral modem VF cable is a 14.5-foot, 26 AWG, 4-conductor keyed cable
with an RJ11C-like plug connector (Figure D-4, Integral Modem Cable). This cable
is supplied with your standalone DSU/CSU.
Figure D-4. Integral Modem Cable
Table D-3. Modem Port Interface
Signal Pin Number
VF Ring 2
VF Tip 3
1
2
3
4
493-14157-01
RJ11
PLUG
RING
TIP
1
2
3
4
RJ11
PLUG