Connection Procedures And Precautions - Cisco 3700 Series Hardware Installation Manual

Chapter 3 Installing the Router
Table 3-3 WAN, LAN, and Voice Connections
Port or Connection Port type, color
Fast Ethernet RJ-45, yellow,
T1/E1 WAN RJ-48C/CA81A,
blue
Cisco serial 60-pin D-sub, blue
Cisco Smart Serial Cisco Smart
compact connector,
blue
1
DSL RJ-11C/CA11A,
lavender
T1/E1 digital voice RJ-48C/CA81A,
tan
2
Analog voice FXS RJ-11, gray
3
Analog voice FXO RJ-11, pink
4
Analog voice E&M RJ-11, brown
BRI S/T WAN RJ-45/CB-1D,
(external NT1) orange
BRI U WAN RJ-49C/CA-A11,
(built-in NT1) red
CT1/PRI T1
CT1/PRI-CSU T1
CE1/PRI E1
56/64-kbps CSU/DSU 8-pin modular, blue RJ-48S interface
1. DSL = digital subscriber line.
2. FXS = foreign exchange station.
3. FXO = foreign exchange office.
4. E&M = ear and mouth.

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.
•
•
•
OL-2180-08
Connection
Ethernet hub
T1 or E1 network
CSU/DSU and serial network or
equipment
CSU/DSU and serial network or
equipment
For WIC-2T and WIC-2A/S only
Network demarcation device for
service provider's DSL interface
Digital PBX
Telephone, fax
Central office, analog PBX
Analog PBX
NT1 device or private integrated
network exchange (PINX)
ISDN network
External T1 CSU
RJ-48C/CA81A interface
E1 network
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.
Connecting WAN, LAN, and Voice Cables
Cable
Straight-through Ethernet
RJ-48 T1/E1
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
information about selecting these cables.
RJ-11
RJ-48 T1/E1 cable
RJ-11
RJ-11
RJ-11
RJ-45 straight-through
RJ-48 straight-through
DB-15 T1 serial cable
RJ-48 straight-through
DB-15 to BNC, DB-15 to DB-15, DB-15
to twinax, or DB-15 to RJ-45
RJ-48 straight-through
Cisco 3700 Series Routers Hardware Installation Guide
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