Installation guide

Making External Connections to Cisco 4000 Series Routers 4-83
Network Connection Considerations
Figure 4-39 Four-Port BRI Network Processor Module
Figure 4-40 Eight-Port BRI Network Processor Module
H2520
RJ-45
BRI ports
Network hazardous
voltages may be
present in this area
LEDs
87654321
PORT-7 PORT-6 PORT-5 PORT-4
PORT-3 PORT-2 PORT-1 PORT-0
76543210
ISDN
BRI
H2412
Network hazardous
voltages may be
present in this area
RJ-45
BRI ports
LEDs
87654321
PORT-7 PORT-6 PORT-5 PORT-4
PORT-3 PORT-2 PORT-1 PORT-0
76543210
ISDN
BRI