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Connect the router to the network (continued), Connect the atm smi3 and mm3 ports, Warning – Cisco 7100 Series User Manual

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11

Connect the Router to the Network
(continued)

5

I

155 - MM

RX

RX

EN

CEL CAR ALM

TX

22129

To ATM network

equipment

ATM 1/0

Connect the ATM SMI3 and
MM3 Ports

The SMI3 (OC-3c/STM-1 single-mode
intermediate reach) and MM3
(OC-3c/STM-1 multimode) ports provide
an interface to ATM networks and transmit
and receive data at rates of up to 155 Mbps
bidirectionally. The SMI3 and MM3 ports
connect to a SONET/SDH single-mode or
multimode optical fiber cable. Use one
duplex SC-type connector or two simplex
SC-type connectors.

Warning

Class 1 laser product.

Warning

Because invisible laser

radiation may be emitted from the
aperature of the port when no fiber
cable is connected, avoid exposure
to laser radiation and do not stare
into open apertures.

1

Attach the fiber-optic cable (either one
duplex SC-type connector or two
simplex SC-type connectors) directly to
the receptacle on the router.

2

Attach the network end of the cable to
an external DSU (an ATM network).

Note: For information on SONET
specifications for fiber-optic transmissions,
power budget, and power margins for
multimode and single-mode transmissions,
refer to Appendix C, “Cable Specifications,”
in the
Cisco 7100 Series VPN Router
Installation and Configuration Guide.