Connect the router to the network (continued), Connect the e3 ports – Cisco 7100 Series User Manual

Page 11

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9

Connect the Router to the Network
(continued)

5

I

XMTR

RCVR

EN

RCLK FERF RL

AIS OOF LL

22073

To E3 network

equipment

Ferrite bead

Serial 1/0

Connect the E3 Ports

The E3 port supports full-duplex operation
at E3 (34-Mbps) speeds. Use a 75-ohm
coaxial cable to connect to an E3 serial
network. Serial cables conform to
EIA/TIA-612 and EIA/TIA-613
specifications. The E3 serial ports on the
router are considered to be DTE devices.

Note: The E3 ports support several types
of integrated DSUs. For a listing of DSU
feature compatibilities, refer to Appendix C,
“Cable Specifications,” in the
Cisco 7100
Series VPN Router Installation and
Configuration Guide.

1

Attach the appropriate 75-ohm coaxial
cable directly to the receptacle on the
router and tighten the strain-relief
screws.

2

Attach the network end of the coaxial
cable to the external synchronous serial
equipment.

Note: The E3 coaxial cable comes with an
attached ferrite bead.

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