Juniper E Series Hardware Manual page 154

ERX 7.0.x Hardware Guide
Figure 55: SRP I/O Module Serial Port
Table 19 lists the pinout for the serial cable's RS-232 connector.
Table 19: SRP I/O Module—RS-232 Serial Connector Pinout
Once you have configured an IP address on the system, you can connect using
a host running Telnet over the 10/100Base-T Ethernet port on the SRP I/O
module. The router ships with a straight-through cable having a male RJ-45
Ethernet connector on each end. Figure 56 shows the location of the Ethernet
port and the sequence of the pins in the RJ-45 connector.
138
SRP I/O Module
DB-9
Pin
1
2
3
4
5
6
7
8
9
10/100
BASE T
PIN 1
RS-232
PIN 9
Signal
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RNG