Installation guide

Making External Connections to Cisco 4000 Series Routers 4-67
Network Connection Considerations
Figure 4-19 Four-Port Serial Network Processor Module Ports
Caution
The connector on the four-port serial network processor module is upside down.
The cable should match that orientation. Ensure that the 60-pin connectors on the cable and
on the module match. Do not force the cable into the connector upside down. (See
Figure 4-19.)
Figure 4-20 shows the network connections of the four-port serial network processor
module adapter cables.
60-Pin
ports
H1981
PORT-3 PORT-2
PORT-1 PORT-0
P-3
P-1
P-2
P-0
P-3 P-2 P-1`
P-0
LP CN TD TC RD RC LP CN TD TC RD RC LP CN TD TC RD RC LP CN TD TC RD RC
LEDs
60-Pin
ports