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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter 3 Electrical Cards
3.9 FMEC-DS1/E1 Card
Figure 3-7 FMEC-E1 Faceplate and Block Diagram
You can install the FMEC-E1 card in any Electrical Facility Connection Assembly (EFCA) slot from
Slot 18 to 22 or Slot 25 to 29 on the ONS 15454 SDH. Each FMEC-E1 card port features E1-level inputs
and outputs supporting cable losses of up to 6 dB at 1024 kHz.
3.9 FMEC-DS1/E1 Card
The ONS 15454 SDH FMEC-DS1/E1 card provides front mount electrical connection for
14 ITU-compliant, G.703 E-1 ports. With the FMEC-DS1/E1 card, each E1-N-14 port operates at
2.048 Mbps over a 120-ohm balanced cable via two 37-pin DB connectors. Figure 3-8 shows the
FMEC-DS1/E1 card faceplate and block diagram.
Caution This interface can only be connected to SELV circuits. The interface is not intended for connection to
any Australian telecommunications network without the written consent of the network manager.
Figure 3-8 FMEC-DS1/E1 Faceplate and Block Diagram
Inventory Data
(EEPROM)
134381
14 Input
Coaxial
Connectors
14 Output
Coaxial
Connectors
B
a
c
k
p
l
a
n
e
14
Pairs of
Trans-
formers
FMEC
E1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Inventory Data
(EEPROM)
134382
Ch 1-7
In/Out DB
Connector
Ch 8 - 14
In/Out DB
Connector
B
a
c
k
p
l
a
n
e
14
Pairs of
common
mode
chokes
14
Pairs of
Transient
Suppr.
14
Pairs of
Imped.
Transf.
FMEC
DS1/E1