Cabling The Srp I/O Module - Juniper ERX - RELEASE 11.1.X HARDWARE GUIDE 03-23-2010 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
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.

Cabling the SRP I/O Module

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.
#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.
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

Cabling the SRP I/O Module

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