3-21
Cisco 3700 Series Routers Hardware Installation Guide
OL-2180-08
Chapter 3 Installing the Router
Connecting WAN, LAN, and Voice Cables
Connection Procedures and Precautions
Connect each WAN, LAN, and voice cable to the appropriate connector on the chassis or on a network
module or interface card.
•
Position the cables carefully, so that they do not put strain on the connectors.
•
Organize cables in bundles so that cables do not intertwine.
•
Inspect the cables to make sure that the routing and bend radiuses are satisfactory. Reposition cables,
if necessary.
Table 3-3
WAN, LAN, and Voice Connections
Port or Connection
Port type, color
Connection
Cable
Fast Ethernet
RJ-45, yellow,
Ethernet hub
Straight-through Ethernet
T1/E1 WAN
RJ-48C/CA81A,
blue
T1 or E1 network
RJ-48 T1/E1
Cisco serial
60-pin D-sub, blue
CSU/DSU and serial network or
equipment
Cisco serial transition cable that matches
the signaling protocol (EIA/TIA-232,
EIA/TIA-449, V.35, X.21, or
EIA/TIA-530) and the serial port
operating mode (DTE or DCE).
See the
Cisco Modular Access Router
Cable Specifications
document for
information about selecting these cables.
Cisco Smart Serial
Cisco Smart
compact connector,
blue
CSU/DSU and serial network or
equipment
For WIC-2T and WIC-2A/S only
DSL
1
1.
DSL = digital subscriber line.
RJ-11C/CA11A,
lavender
Network demarcation device for
service provider’s DSL interface
RJ-11
T1/E1 digital voice
RJ-48C/CA81A,
tan
Digital PBX
RJ-48 T1/E1 cable
Analog voice FXS
2
2.
FXS = foreign exchange station.
RJ-11, gray
Telephone, fax
RJ-11
Analog voice FXO
3
3.
FXO = foreign exchange office.
RJ-11, pink
Central office, analog PBX
RJ-11
Analog voice E&M
4
4.
E&M = ear and mouth.
RJ-11, brown
Analog PBX
RJ-11
BRI S/T WAN
(external NT1)
RJ-45/CB-1D,
orange
NT1 device or private integrated
network exchange (PINX)
RJ-45 straight-through
BRI U WAN
(built-in NT1)
RJ-49C/CA-A11,
red
ISDN network
RJ-48 straight-through
CT1/PRI
T1
External T1 CSU
DB-15 T1 serial cable
CT1/PRI-CSU
T1
RJ-48C/CA81A interface
RJ-48 straight-through
CE1/PRI
E1
E1 network
DB-15 to BNC, DB-15 to DB-15, DB-15
to twinax, or DB-15 to RJ-45
56/64-kbps CSU/DSU 8-pin modular, blue RJ-48S interface
RJ-48 straight-through