Cisco Systems OL-12811-01 manual E1 CSU

Connecting Cisco ISDN PRI Network Modules to the Network

Channelized E1/ISDN PRI Balanced (120-Ohm) Network Modules

Figure 13 Connecting a 120-ohm CE1/PRI-B Module to an E1 CSU (DB-15-to-DB-15 Connectors)

FE-PRI
1FE-1CE1-B/U
REMOTE ALARM	LOCAL ALARM	LOOP BACK	CARRIER DETECT

CTRLR 0

				10/100BaseT
COLL	LINK	100Mbps	FDX	EN

CE1/PRI-B (DB-15)

E1 cable for 120-ohm balanced connections with a DB-15 connector at the network end

DB-15 connector

H7470

E1 CSU

Figure 14 Connecting a 120-ohm CE1/PRI-B Module to an E1 CSU (DB-15-to-Twinax Connectors)

FE-PRI
1FE-1CE1-B/U
REMOTE ALARM	LOCAL ALARM	LOOP BACK	CARRIER DETECT

CTRLR 0

				10/100BaseT
COLL	LINK	100Mbps	FDX	EN

CE1/PRI port (DB-15)

E1 cable for 75-ohm balanced connections with twinax connectors at the network end

Twinax connectors

H7473

E1 CSU

Figure 15 Connecting a 120-ohm CE1/PRI-B Module to an E1 CSU (DB-15-to-RJ-45 Connectors)

FE-PRI
1FE-1CE1-B/U
REMOTE ALARM	LOCAL ALARM	LOOP BACK	CARRIER DETECT

CTRLR 0

				10/100BaseT
COLL	LINK	100Mbps	FDX	EN

CE1/PRI port (DB-15)

E1 cable for 120-ohm balanced connections with an RJ-45 connector at the network end

H7472

RJ-45 jack

Connecting Cisco ISDN PRI Network Modules to the Network

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