Installation guide

E4G-400 Connector Pinouts
E4G Series Routers Hardware Installation Guide
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E4G-400 Connector Pinouts
This section provides pinouts for connectors and associated cables used on the E4G-400 routers.
Table 25 describes the pinouts for a DB-9 console plug connector.
Figure 72 shows the pinouts for a 9-pin to 25-pin (RS-232) null-modem cable.
Figure 72: Null-Modem Cable Pinouts
Table 25: Pinouts for the DB-9 Console Connector
Function
Pin
Number Direction
DCD (data carrier detect) 1 In
RXD (receive data) 2 In
TXD (transmit data) 3 Out
DTR (data terminal ready) 4 Out
GND (ground) 5 —
DSR (data set ready) 6 In
RTS (request to send) 7 Out
CTS (clear to send) 8 In
Screen
TxD
RxD
Ground
RTS
CTS
DSR
DCD
DTR
Cable connector: 9-pin female
Switch
Cable connector: 25-pin male/female
25pin
PC/Terminal
Screen
RxD
TxD
Ground
RTS
DTR
CTS
DSR
DCD
Shell
3
2
5
7
8
6
1
4
1
3
2
7
4
20
5
6
8