Cabling The Srp I/O Module - Juniper E SERIES BROADBAND SERVICES ROUTERS 11.3.X - ERX HARDWARE GUIDE REV 26-9-2010 Hardware Manual

Table 6: Required Cables
Connection
Management connection between SRP I/O module and
the LAN
Management connection between SRP I/O module and a
management console
Direct connections to I/O modules

Cabling the SRP I/O Module

Copyright © 2010, Juniper Networks, Inc.
#10 (ERX7xx and ERX14xx models) or #8 (ERX310 Broadband Services Router) kep
nut to connect the ground (earth) wire to the ground terminal.
Power input module wiring—We recommend a minimum of 8-AWG wire for ERX14xx
models, 12-AWG wire for ERX7xx models, and 14-AWG wire for ERX310 router (DC
model) with a dual stud terminal lug with 5/8–inch spacing. For the ERX310 router AC
model, use a standard IEC power cord.
Consider the distance from the connection point and the configuration of the system
when determining the size of wire used.
See "System Specifications" on page 109 for more information on router specifications.
NOTE: If you plan to use a cable-management bracket (ERX7xx and
ERX14xx models only), install it before you begin cabling your router.
Cable-management brackets are helpful to keep network interface cables
untangled and orderly and to prevent cables from hindering access to other
slots. See "Installing a Cable-Management Bracket on ERX7xx Models" on
page 92.
Before powering up the router, you must set up a management console. The console
enables you to communicate with your system during the power-up process and to
manage your system using the command-line interface (CLI).
When connecting a console directly to the SRP I/O module, use a cable appropriate for
your terminal connector. The cable must have a female DB-9 connector to attach to the
RS-232 port on the SRP I/O module. See Figure 24 on page 51 and Figure 25 on page 52.
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.
NOTE: The alarm function on the SRP I/O module is currently not
implemented.
Port and Cable Used
One 10/100Base-T Ethernet management port with an RJ-45
connector
One RS-232 port with a DB-9 connector for VT100 management
access
See the ERX Module Guide for specific I/O module connector
information
Chapter 5: Cabling ERX Routers
49