Juniper Networks ERX Hardware 8 - Manual (Page 89)

Cabling ERX Routers
Figure 34: I/O Module with SMB Connectors
CT3/T3
12
I/O
Port 0
g013760
X.21/V.35 Connectors
Four cables are available for the X.21/V.35 I/O modules:
X.21 DCE cable (terminated with 8 female X.21 connectors)
X.21 DTE cable (terminated with 8 male X.21 connectors)
V.35 DCE cable (terminated with 8 female V.35 connectors)
V.35 DTE cable (terminated with 8 male V.35 connectors)
Each 200-pin proprietary socket on the I/O module provides connections to 8
V.35 or X.21 ports. The remote end of the cable is terminated with either 8 X.21
connectors or 8 V.35 connectors. The cable you attach to the port on the I/O
module determines whether the connection is X.21 or V.35 and DCE or DTE.
Cabling I/O Modules 71