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CHAPTER 4

Cabling the ERX System

Cabling I/O Modules

The following sections describe how to cable I/O modules with different types of connectors. For information about the connectors on the different line modules, see Appendix B, Module Specifications.

Cabling BNC Connectors

To cable I/O modules with BNC connectors:

1Insert the RX male BNC connector into the selected port.

2Terminate the other end in the appropriate network interface, such as a multiplexer (MUX) device.

3Repeat steps 1 and 2 for the TX connector.

4Repeat steps 1–3 for all ports.

.

CT3

I/O

RX

BNC

TX

Port 0

RX

TXTX

Port 1

RX

TX

Port 2

RX

Figure 4-4I/O module with BNCs

Cabling HSSI The HSSI I/O module uses a standard 50-pin HSSI connector.

Connectors

Caution: Do not terminate HSSI connections with SCSI connectors. Although SCSI connectors look very similar to HSSI connectors, using SCSI connectors on HSSI connections may lead to data loss.

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Juniper Networks ERX-700, ERX-1410, ERX-1440, ERX-705 manual Cabling I/O Modules, 4I/O module with BNCs