Connecting to a Network
Do not work on the system, or connect or disconnect cables during periods of lightning activity.
Warning
To see translations of the warnings that appear in this publication, refer to the Regulatory
Compliance and Safety Information document that accompanied this device.
Table 3-2
Cable Connections for the Cisco 2600 Series Routers
Port or Connection
Port Type, Color
Ethernet
RJ-45, yellow
T1/E1 WAN
RJ-48C/CA81A,
light green
Cisco serial
60-pin D-sub
Cisco Smart serial
Cisco Smart
compact connector
DSL
RJ-11C/CA11A,
lavender
T1 digital voice
RJ-48C/CA81A,
black
Analog voice FXS
RJ-11, gray
Analog voice FXO
RJ-11, pink
Analog voice E&M
RJ-11, brown
BRI S/T WAN
RJ-48C/CA81A,
(external NT1)
orange
BRI U WAN
RJ-49C/CA11A,
(built-in NT1)
orange
CT1/PRI
T1
CT1/PRI-CSU
T1
CE1/PRI
E1
Token Ring
UTP, purple
STP, purple
56/64-kbps
8-pin modular
DSU/CSU
To connect your router to a network, connect the Ethernet or Token Ring port to a hub or directly to a
switch such as a Cisco Catalyst 3900. (See
Cisco 2600 Series Routers Hardware Installation Guide
3-18
Connected To:
Ethernet hub or Ethernet switch
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
Token Ring device
RJ-48S interface
Figure 3-24
Chapter 3
Cable
Straight-through Ethernet
RJ-48 T1
Cisco serial transition cable that matches the
signaling protocol (EIA/TIA-232,
EIA/TIA-449, V.35, X.21, or EIA-530)
and the serial port operating mode (DTE or
DCE).
See the Cisco Modular Access Router Cable
Specifications for information about selecting
these cables.
RJ-11
RJ-48 T1 cable
RJ-11
RJ-11
RJ-11
RJ-48
RJ-49
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-45 Token Ring cable
RJ-48 straight-through
or
Figure
3-25.)
Installing the Router
OL-2171-02
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