4-6
Cisco Network Modules Hardware Installation Guide
OL-2485-20
Chapter 4 Connecting Fast Ethernet-PRI Network Modules
1-Port Fast Ethernet and 1- or 2-Port Channelized E1/ISDN PRI Balanced or Unbalanced Network Modules
Connecting Fast Ethernet Channelized E1 Modules
Use the following sections to connect to the Fast Ethernet or CE1-PRI-B ports.
Fast Ethernet Port
To connect the Fast Ethernet port, see the
“Fast Ethernet Port” section on page 4-2
.
CE1/PRI-B Port
Use the appropriate cable to connect a CE1/PRI-B (120-ohm) port to an E1 CSU. (See
Figure 4-10
,
Figure 4-11
, and
Figure 4-12
, showing DB-15, twinax, and RJ-45 CSUs respectively.) These ports are
color-coded tan.
Figure 4-10 Connecting a CE1/PRI-B Port to an E1 CSU (DB-15-to-DB-15 Connectors)
Figure 4-11 Connecting a CE1/PRI-B Port to an E1 CSU (DB-15-to-Twinax Connectors)
LOOP
BACK
EN
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
LOOP
BACK
EN
FE-PRI
1FE-1CE1-B/U
LOCAL
ALARM
REMOTE
ALARM
CARRIER
DETECT
CTRLR 0
10/100BaseT
COLL
LINK
100Mbps
FDX
H7473
CE1/PRI port (DB-15)
Twinax connectors
E1 CSU
E1 cable for 75-ohm
balanced connections
with twinax connectors
at the network end