Table 3 summarizes some typical WAN, LAN, and voice connections for the Cisco 2800 series routers.
Table 3
WAN, LAN, and Voice Connections
Port or Connection
Port Type, Color
Ethernet
RJ-45, yellow
T1/E1 WAN
RJ-48C/CA81A
xCE1T1-PRI
RJ-48S, tan
T3/DS3/E3 WAN
BNC connector
OC3 / STM-1 WAN
SC connector
Cisco serial
60-pin D-sub, blue
Cisco Smart Serial
Cisco Smart compact
connector, blue
ADSL
RJ-11C/CA11A,
lavender
SHDSL
RJ-11C/CA11A,
lavender, RJ-14
T1/E1 digital voice
RJ-48C/CA81A, tan
Analog voice FXS
RJ-11, gray
Analog voice FXO
RJ-11, pink
Analog voice E&M
RJ-45, brown
BRI S/T WAN
RJ-45/CB-1D, orange NT1 device or private integrated
(external NT1)
BRI U WAN
RJ-49C/CA-A11, red ISDN network
(built-in NT1)
56/64-kbps
8-pin modular, blue
DSU/CSU
T1/FT1 DSU/CSU
8-pin modular, blue
Gigabit Ethernet SFP,
LC, color according
optical
to optical wavelength
Gigabit Ethernet SFP,
RJ-45
copper
1. See the
Cisco Modular Access Router Cable Specifications
Connection
Ethernet hub or Ethernet switch
T1 or E1 network
External T1 CSU or other
T1 equipment
T3 network, CSU/DSU, or other
T3/DS3 equipment
OC3/STM-1 network or device
CSU/DSU and serial network or
equipment
CSU/DSU and serial network or
equipment
Network demarcation device for
service provider's DSL interface
Network demarcation device for
service provider's DSL interface
Digital PBX, ISDN network,
CSU/DSU
Telephone, fax
Central office, analog PBX
Analog PBX
network exchange (PINX)
RJ-48S interface in subrate device
or network
RJ-48C interface
1000BASE-SX, -LX, -LH, -ZX,
-CWDM
1000BASE-T
document for information about selecting these cables.
Cable
Category 5 or later Ethernet
RJ-48 T1/E1
RJ-48S to RJ-48S TE; RJ-48S to RJ-48S NT;
RJ-48S to RJ-48S T1' RJ-48S to bare
RJ-48S to BNC; RJ-48S to twinaxial cable
RJ-48S to DB-15
RJ-48S to DB-15 null
75-ohm coaxial cable
Single-mode or multimode optical fiber
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
1
or DCE).
RJ-11 straight-through
RJ-11 straight-through for 2-wire
RJ-14 straight-through for 4-wire
RJ-48 T1/E1
RJ-11; RJ21 if using NM-HDA,
straight-through
RJ-45
RJ-45 straight-through
RJ-48 straight-through
RJ-48 straight-through
RJ-48 straight-through
Optical fiber as specified on applicable
data sheet
Category 5, 5e, 6 UTP
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