Symbols
A
- abnormal LED activity 1, 2
- access, management 1, 2
- setting up console 1, 2
- SNMP 1, 2
- Telnet setup
- accessing, fan tray
- adapters, I/O 1, 2
- agency certification 1, 2, 3, 4
- air filter 1
- airflow 1
- rack-mounted installation and
- specifications 1, 2
- alarm ports
- amperage 1, 2
- antistatic bags and containers
- assembly numbers, locating
- assigning an IP address
- auxiliary port 1, 2
B
- bays, upper and lower, right and left 1, 2, 3
- BNC connector
- booting
C
- cable management bracket
- cables
- cabling
- cabling router
- cabling SRP IOA
- Case Manager
- certification 1, 2, 3, 4
- chassis
- circulation, air
- classification, packet
- cleaning the router
- CLI (command-line interface)
- clock source input ports
- clocking problems
- command-line interface
- compliance
- components
- configuring cables 1, 2
- configuring management access
- configuring Telnet
- connecting console to the router
- connectors, pinouts
- console
- console port 1, 2
- consumption, power 1, 2
- conventions
- cooling system
- crossover cable
- current (electrical) requirements 1, 2
- customer support 1, 2
D
- damaged components, returning
- DB-9 connector 1, 2
- DC power 1, 2, 3
- detecting double-bit error
- diagnosing problems
- diagnostic LEDs
- dimensions of E120 router
- dimensions of E320 router
- dissipation, heat 1, 2
- distribution rack 1, 2
- documentation set
- double-bit errors
E
- E120 router
- assigning IP address to
- cabling
- cabling recommendations
- cleaning
- dimensions
- electrical requirements
- environmental requirements
- equipment rack requirements
- Ethernet cable
- installing
- installing modules
- lifting
- management access
- mechanical requirements
- modules
- power requirements
- powering down
- powering up
- safety guidelines
- site planning
- slot numbering
- space requirements 1, 2
- troubleshooting 1, 2
- unpacking
- views
- E320 router
- assigning IP address to
- cabling
- cabling recommendations
- cleaning
- dimensions
- electrical requirements
- environmental requirements
- equipment rack requirements
- Ethernet cable
- installing
- installing modules
- lifting
- management access
- mechanical requirements
- modules
- power requirements
- powering down
- powering up
- safety guidelines
- site planning
- slot numbering
- space requirements 1, 2
- troubleshooting 1, 2
- unpacking
- views
- EIA distribution rack
- ejectors, module
- electrical requirements 1, 2
- electronic equipment, recycling
- electrostatic discharge, precautions
- environmental requirements
- ESD grounding jack
- Ethernet link
- external timing ports
F
G
H
- halt command 1, 2
- hardware
- cable configuration 1, 2
- reclamation and recycling
- redundancy features
- repairing and replacing
- hazardous materials, reclamation and recycling
- heat dissipation 1, 2, 3
- high-availability mode
- hot-swapping fan trays
- hot-swapping modules
- humidity requirements 1, 2
- HyperTerminal
I
- I/O adapter 1, 2
- installing IOA shelf
- installing modules
- installing NVS cards 1
- installing router 1
- installing SFPs
- IOA module 1, 2
- IOA shelf 1
- IP address, assigning
J
L
M
- maintenance, system
- management
- management access 1, 2
- setting up console 1, 2
- SNMP 1, 2
- Telnet setup
- Management Information Bases
- management port
- managing modules
- manuals
- mechanical requirements for distribution rack
- MIBs (Management Information Bases)
- module reset button
- modules 1
- monitoring LEDs
- monitoring temperature
- mounting kits
- mounting posts for rack
N
- network management 1, 2
- setting up console 1, 2
- SNMP 1, 2
- Telnet setup
- network timing ports
- NMI button
- nonvolatile storage
- notice icons
- NVS cards 1
- installing 1, 2
- redundancy
- storing
O
P
- packaging, recycling
- packet classification
- packing instructions
- passwords, Telnet
- PC-CARD
- PCMCIA slot, SRP modules
- PDU 1
- pinouts, E Series router cables and connectors
- planning site for installation
- plenum
- ports
- power
- power distribution unit
- Power Distribution Unit (PDU)
- power input module, cabling
- power switches 1, 2
- powering down router
- powering up router
- preinstallation responsibilities
- preparing site for installation
- Privileged Exec command mode
- problems
- product numbers, locating
Q
R
- rack, distribution
- reclamation and recycling
- recycling Juniper Networks equipment
- redundancy 1
- regulatory requirements
- release mechanisms for SFPs
- removing components
- removing modules
- removing SFPs
- repacking components
- repairing hardware components
- replacing components
- replacing modules
- replacing NVS cards 1, 2, 3
- replacing SFPs 1, 2
- reset button
- resetting modules
- Restriction of Hazardous Substances (RoHS) Directive, recycling equipment
- Return Materials Authorization
- returning product
- RJ-45 connector 1, 2
- RMA (Return Materials Authorization)
- RoHS (Restriction of Hazardous Substances) Directive, recycling equipment
- RS-232 port 1, 2, 3, 4, 5
S
- safety
- agency certification 1, 2
- guidelines
- self-testing, modules
- serial numbers, locating
- SFM (switch fabric module) 1, 2
- SFPs (small form-factor pluggable transceivers) 1, 2
- show interface command
- show version command 1, 2, 3, 4, 5, 6, 7
- single-bit errors
- site planning
- size
- slices, fabric
- slot combinations 1, 2
- slot disable command
- slot groups 1
- slot numbering 1, 2
- small form-factor pluggable transceivers
- SNMP for management access 1, 2
- space requirements 1, 2, 3, 4
- specifications
- SRP (switch route processor) module 1, 2
- errors on
- installing
- IOA
- PCMCIA slot
- powering down
- redundancy
- removing 1, 2
- switch fabric slice 1, 2
- SRP IOA 1
- cabling 1, 2
- installing
- removing
- starting router
- static electricity, protecting against
- storing, modules and components
- support, technical See technical support
- switch fabric modules
- switch fabric slices 1, 2
- switch router processor modules
- switches, power 1, 2
- switchover, SRP modules
- synchronization, SRP modules
- system maintenance
T
- technical support 1
- Telnet connection to router
- temperature
- excessive 1, 2
- monitoring
- requirements 1, 2
- text and syntax conventions
- thermal protection mode 1, 2, 3
- timing port
- tools required
- cabling router
- installing modules
- removing components 1, 2
- unpacking router
- troubleshooting 1, 2
- booting
- cables 1, 2
- clocking
- double-bit errors
- Ethernet link
- fans 1, 2
- LED activity for
- modules 1, 2
- power failure 1, 2
- safety guidelines
U
V
W
- Waste Electrical and Electronic Equipment (WEEE) Directive. See WEEE Directive
- WEEE (Waste Electrical and Electronic Equipment) Directive, recycling equipment
- weight
- of E120 router
- of E320 router
- of rack 1, 2
Download This Guide
Cabling the Router for Power
After you have correctly cabled the SRP IOA, you must attach grounding and electrical wires before you attempt system power-up. See Figure 27.
Three main tasks are involved:
- Switch all router power switches to OFF.
Caution: Switches may have inadvertently flipped to ON during shipping and installation.
- Connect the grounding wires to the chassis.
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 to the PDUs.
See System Specifications for the power requirements for the router. Table 8 identifies the cabling requirements.
Table 8: E320 Router PDU Cables and Wires Needed
Cable/Wire | From | To |
---|---|---|
One 6-AWG ground wire | PDU ground terminal | Termination ground |
Two 4-AWG wire leads | PDU Power A –48 VDC and RTN leads | Appropriate leads on power source No.1 |
Two 4-AWG wire leads | PDU Power B –48 VDC and RTN leads | Appropriate leads on power source No.2 |
Figure 27 shows the main components of a PDU.
Figure 27: PDU

Task 1: Turn Off All Router Power
Before starting to cable the router, push all router power switches to OFF to turn off the router.
Task 2: Connect the Grounding Cables
The router has two grounding studs located in the rear of the chassis, near the power inputs. Each stud provides grounding for a single power unit.
To ground each power unit:
- Locate the grounding studs on the router (Figure 27).
- Remove the nuts and locking washers from the grounding
studs.
Note: We recommend a minimum of 6-AWG ground wire with a ring-style terminal.
- Place the grounding cable lead on one of the grounding studs and tighten the nuts to secure the connection.
- Connect the other end of the ground cable to the appropriate ground termination lead.
- Repeat Steps 3–4 for the remaining grounding stud.
Note: When grounding the router, leave a service loop in the grounding cable to ensure that the grounding cable is the last cable to disconnect from the shelf if strain is placed on the electrical cables.
Task 3: Connect the Power Cables
To connect power cables to the router, follow these steps. See Figure 27 as needed.
![]() | Note: Juniper Networks has qualified an AC power supply unit for use with the router. Contact your account representative for more information. |
![]() | Warning: Before you begin this procedure, be sure the power source is turned off, the router is turned off, and proper grounding wires are attached. |
- Be sure you have completed Task 1: Turn Off All Router Power and Task 2: Connect the Grounding Cables.
- If applicable, loosen the screws from the clear power
input module cover and remove it.
Warning: The wiring color code of the power cables depends on the color coding of the DC power source installed at your site. Color code standards for DC wiring do not exist. To ensure that the correct polarity is connected to the router power units, confirm the connection of the power cables to the + (positive) and – (negative) leads at the power source.
Note: Loosen the top and bottom thumbscrews (using a No. 2 Phillips screwdriver, if necessary)
- Remove the nuts and locking washers from the posts for the power input (A or B) using a small insulated adjustable wrench.
- Place one negative (neutral) cable lead on the post labeled –48 VDC.
- Replace the locking washers and nuts, and tighten the nuts to secure the connection.
- Place the other cable lead on the post labeled RTN.
- Replace the locking washer and nut, and firmly tighten the nut to secure the connection.
- Attach the opposite end of Power A's wire leads to the
appropriate leads on your power source.
Note: To provide redundancy, do not use the same power source for Power A and Power B leads.
- Place the clear plastic guard over the terminal posts, and secure it in place by tightening the four screws.
- Repeat Steps 1–9 for each power input module in your configuration.