Juniper Networks ERX-1440, ERX-1410 There are two ports located in the Console section as shown

Cabling the SRP I/O Module ERX Edge Routers

4-9

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 into your network’s clock source A.

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

Console Ports

There are two ports located in the Console section (as shown in

Figure 4-3) that allow management access.

•The 10/100Base-T Ethernet port accepts an RJ-45 (male) connector. This port provides an out-of-band connection. (We ship an Ethernet cable with the system.)

•The RS-232 port accepts a DB-9 (female) connector. This port allows direct CLI access.

Follow this procedure to connect the Console ports. Refer to Figure 4-3as needed.

1Insert the male RJ-45 connector into the 10/100Base-T port until it clicks into place.

2Attach the opposite end of the cable to your appropriate network device.

3Insert the female DB-9 connector into the RS-232port until it is secure.

4Hand-tighten the DB-9 connector screws.

5Attach the opposite end of the cable to your terminal (VT100/ANSI).

See Chapter 5, Accessing the ERX System, for more information about management access.