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Cisco 2900 and 3900 Series Hardware Installation
OL-18712-01
Chapter 3 Installing and Connecting the Router
Connecting WAN, LAN, and Voice Interfaces
Ports and Cabling
Table 3-5
summarizes typical WAN, LAN, and voice connections for Cisco 2900 and Cisco 3900 series
routers. The connections summarized here are also described in detail in the document on Cisco.com
Cisco
Modular Access Router Cable Specifications
Table 3-5
WAN, LAN, and Voice Connections
Port or Connection
Port Type, Color
1
Connection:
Cable
Ethernet
RJ-45, yellow
Ethernet hub or Ethernet switch
Category 5 or higher Ethernet
T1/E1 WAN
xCE1T1-PRI
RJ-48C/CA81A
RJ-48S, tan
T1 or E1 network
External T1 CSU or other
T1 equipment
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
T3/DS3/E3 WAN
BNC connector
T3 network, CSU/DSU, or other
T3/DS3 equipment
75-ohm coaxial cable
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-530)
and the serial port operating mode
(DTE or DCE).
2
Cisco Smart serial
Cisco Smart compact
connector, blue
CSU/DSU and serial network or
equipment
ADSL
RJ-11C/CA11A,
lavender
Network demarcation device for
service provider DSL interface
RJ-11 straight-through
SHDSL
RJ-11C/CA11A,
lavender, RJ-14
Network demarcation device for
service provider DSL interface
RJ-11 straight-through for 2-wire
RJ-14 straight-through for 4-wire
T1/E1 digital voice
RJ-48C/CA81A, tan
Digital PBX, ISDN network,
CSU/DSU
RJ-48 T1/E1
Analog voice FXS
RJ-11, gray
Telephone, fax
RJ-11; RJ21 if using NM-HDA,
straight-through
Analog voice FXO
RJ-11, pink
Central office, analog PBX
Analog voice E&M
RJ-45, brown
Analog PBX
RJ-45
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
56/64-kbps
DSU/CSU
8-pin modular, blue
RJ-48S interface in subrate device
or network
RJ-48 straight-through
T1/FT1 DSU/CSU
8-pin modular, blue
RJ-48C interface
RJ-48 straight-through
Gigabit Ethernet SFP,
optical
LC, color according
to optical wavelength
1000BASE-SX, -LX, -LH, -ZX,
-CWDM
Optical fiber as specified on applicable
data sheet
Gigabit Ethernet SFP,
copper
RJ-45
1000BASE-T
Category 5, 5e, 6 UTP