Cisco Systems 7100 Series quick start Connect the ATM T3 or E3 Ports

Connect the Router to the Network (continued)

5

I

EN	DS3
	RX
	CEL CAR ALM

TX

RX

22127

Serial 1/0

To ATM T3 network

equipment

10

Connect the ATM T3 or E3 Ports

The T3 port supports full-duplex operation at T3 (45-Mbps) speeds. The E3 port supports full-duplex operation at E3

(34-Mbps) speeds. Use a 75-ohm coaxial cable to connect to a T3 or E3 ATM serial network. Serial cables conform to EIA/TIA-612 and EIA/TIA-613 specifications. The T3 and E3 serial ports on the router are considered to be DTE devices.

1	Attach a 75-ohm coaxial cable directly
	to the receptacle on the router.
2	Attach the network end of the cable to
	the external synchronous serial
	equipment.

Note: The E3 coaxial cable (not shown) comes with an attached ferrite bead.