Cabling The Router For Power - Juniper E SERIES BROADBAND SERVICES ROUTERS 11.3.X - ERX HARDWARE GUIDE REV 26-9-2010 Hardware Manual

Cabling the Router for Power

Table 8: Power Input Module Cables and Wires Needed
Cable/Wire
ERX14xx models
One 10-AWG ground wire
Two 8-AWG wire leads
Two 8-AWG wire leads
ERX7xx models
One 10-AWG ground wire
Two 12-AWG wire leads
Copyright © 2010, Juniper Networks, Inc.
CAUTION: Do not overtighten the screws.
Connect the other end of the cable to your terminal's serial port (VT100/ANSI).
2.
After you have correctly cabled the modules and I/O modules, you must attach grounding
and electrical wires before you attempt system power-up. Three main tasks are involved:
Switch all router power switches to OFF.
1.
CAUTION: Switches may have inadvertently flipped to ON during shipping
and installation.
Connect the grounding wires to the chassis.
2.
WARNING: Always connect the grounding wires first (before connecting
the power cables) and disconnect them last when installing or servicing
the router.
Connect the power cables (AC or DC) to the power input modules.
3.
See "System Specifications" on page 109 for the power requirements for ERX routers.
Table 8 on page 53 identifies the power input module cabling requirements, and Figure
26 on page 55 shows the main components of a power input module.
From
Power input module ground terminal
Power input module Power A –48 VDC and
RTN leads
Power input module Power B –48 VDC and
RTN leads
Power input module ground terminal
Power input module Power A –48 VDC and
RTN leads
Chapter 5: Cabling ERX Routers
To
Termination ground
Appropriate leads on power source
No.1
Appropriate leads on power source
No.2
Termination ground
Appropriate leads on power source
No.1
53