Ct1 And Ce1 I/O Modules - Juniper E Series Hardware Manual

ERX 7.0.x Hardware Guide
Table 21: DB-9—RJ-45 Crossover Adapter Pinout
Table 22 lists the pinout for the straight-through adapter.
Table 22: DB-9—RJ-45 Straight-Through Adapter Pinout

CT1 and CE1 I/O Modules

CT1 I/O modules have 24 RJ-48C female connectors. CE1 I/O modules have either
20 RJ-48C female connectors or two 25-pair female Telco connectors. Figure 57
shows the location of the ports on a CT1 I/O module and the sequence of the pins
in the RJ-48C connector. CE1 I/O modules equipped with RJ-48C connectors have
the same configuration as CT1 I/O modules equipped with RJ-48C connectors.
140
CT1 and CE1 I/O Modules
DB-9 Pin
1
2
3
4
5
6
7
8
9
RS-232 Signal
DB-9 Pin Name
1 DCD
2 RXD
3 TXD
4 DTR
5 GND (signal)
6 DSR
7 RTS
8 CTS
9 RNG
Signal
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RNG
RJ-45 Pin
1
2
3
4
5
6
7
8
no connect
RJ-45 Pin
1
3
2
6
5
4
8
7
no connect
Ethernet Signal
Name
TX +
TX –
RX +
no connect
no connect
RX –
no connect
no connect
none