Juniper Networks E-Series manual Console Ports

Cabling the SRP I/O Module E-Series Routers

6-7

To connect the clock source input ports:

1Depending on the connector type, complete one of the following tasks:

•E1: Attach the BNC connector to Clock A’s external timing port.

•T1: Wrap the tip wire on pin marked T of Clock A’s external timing port, the ground wire on G pin, and the ring wire on R pin.

Note: You can use a wire-wrap gun to attach wires to pins.

2Attach the opposite end of the external timing cable or wires to your network’s clock source A.

3Repeat steps 1 and 2 for the Clock B connections.

Console Ports

Note: This section applies to all E-series routers.

There are two ports located in the Console section of the SRP I/O module (see Figure 6-2and Figure 6-3) that allow management access.

•The 10/100Base-T Ethernet port accepts an RJ-45 (male) connector, providing an out-of-band connection for LAN access through a Telnet session or SNMP.

•The RS-232 port accepts a DB-9 (female) connector, allowing direct CLI access from a console terminal.

The console port is considered a data terminal equipment interface (DTE). Direct connection to a terminal or PC (which also have DTE interfaces) requires a crossover cable.