Installation guide

Connecting ISDN PRI Network Modules to a Network 8-11

Connecting CE1/PRI-B Modules to the Network

Figure 8-13 Connecting a 120-ohm CE1/PRI-B Module to an E1 CSU

(DB-15-to-DB-15 Connectors)

LOOP

BACK

FE-PRI

1FE-1CE1-B/U

LOCAL

ALARM

REMOTE

ALARM

CARRIER

DETECT

10/100BaseT

COLL

LINK

100Mbps

FDX

H7470

CE1/PRI-B (DB-15)

DB-15 connector

E1 CSU

E1 cable for 120-ohm

balanced connections

with a DB-15 connector

at the network end

CTRLR 0