Cisco Systems 1800 quick start Console, Auxiliary, and USB Port Connections

Table 1 summarizes the basic WAN and LAN connections for the Cisco 1841 router.

Table 1	WAN and LAN Connections
Port or Connection		Port Type, Color1	Connected To:	Cable
Fast Ethernet (FE)		RJ-45, yellow	Ethernet hub	Crossover to connect to a router
				Straight-through to connect to a
				switch
T1/E1 WAN		RJ-48C	T1 or E1 network or CSU/DSU	RJ-48 T1/E1 straight-through
				(Crossover to connect ot a PBX or
				any other equipment)
Cisco serial (1T)		60-pin D-sub, blue	CSU/DSU and serial network or	Cisco serial transition cable that
			equipment	matches the signaling protocol
				(EIA/TIA-232, EIA/TIA-449, V.35,
Cisco Smart serial (2T)		Cisco Smart compact	CSU/DSU and serial network or
				X.21, or EIA/TIA-530) and the serial
		connector, blue	equipment
				port operating mode (DTE or DCE).
			For WIC-2T and WIC-2A/S only
				Refer to the Cisco Modular Access
				Router Cable Specifications
				document for information about
				selecting these cables.
DSL		RJ-11C/RJ-14C	Network demarcation device for	RJ-11 straight-through for 2-wire
			service provider’s DSL interface	RJ-14 straight-through for 4-wire
BRI S/T WAN		RJ-45, orange	NT1 device or PINX3	RJ-45 straight-through
(external NT12)
BRI U WAN		RJ-49C/CA-A11,	ISDN network	RJ-49 straight-through
(built-in NT1)		orange
Analog modem		RJ-11	PSTN	RJ-11 straight-through
56/64-kbps		8-pin modular	RJ-48S interface	RJ-48 straight-through
CSU/DSU

1.The color codes are specific to cables shipped by Cisco

2.NT1 = Network Termination 1

3.PINX = Private integrated network exchange

Console, Auxiliary, and USB Port Connections

The connections described in Table 2 provide system management access.

Note The USB port (version 1.1) is intended for future use only.

Table 2	Console and Auxiliary Port Connections
Port or Connection		Color or Type	Connected To:	Cable
Console		Light blue	PC or ASCII terminal communication	RJ-45-to-DB-9 console cable
			port (usually labeled COM)
Auxiliary		Black	Modem for remote access	RJ-45-to-DB-9 console cable and
				DB-9-to-DB-25 adapter
USB		—	Peripheral devices	USB cable

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