user manual
Table Of Contents
- Cisco ONS 15454 SDH Reference Manual
- Contents
- About this Guide
- Shelf and FMEC Hardware
- Common Control Cards
- Electrical Cards
- Optical Cards
- Ethernet Cards
- Storage Access Networking Cards
- Card Protection
- Cisco Transport Controller Operation
- Security and Timing
- Circuits and Tunnels
- SDH Topologies and Upgrades
- CTC Network Connectivity
- Alarm Monitoring and Management
- Ethernet Operation
- Hardware Specifications
- A.1 Shelf Specifications
- A.2 SFP Specifications
- A.3 General Card Specifications
- A.4 Common Control Card Specifications
- A.5 Electrical Card and FMEC Specifications
- A.5.1 E1-N-14 Card Specifications
- A.5.2 E1-42 Card Specifications
- A.5.3 E3-12 Card Specifications
- A.5.4 DS3i-N-12 Card Specifications
- A.5.5 STM1E-12 Card Specifications
- A.5.6 BLANK Card
- A.5.7 FMEC-E1 Specifications
- A.5.8 FMEC-DS1/E1 Card Specifications
- A.5.9 FMEC E1-120NP Card Specifications
- A.5.10 FMEC E1-120PROA Card Specifications
- A.5.11 FMEC E1-120PROB Card Specifications
- A.5.12 E1-75/120 Impedance Conversion Panel Specifications
- A.5.13 FMEC-E3/DS3 Card Specifications
- A.5.14 FMEC STM1E 1:1 Card Specifications
- A.5.15 FMEC-BLANK Card Specifications
- A.5.16 MIC-A/P Card Specifications
- A.5.17 MIC-C/T/P Card Specifications
- A.6 Optical Card Specifications
- A.6.1 OC3 IR 4/STM1 SH 1310 Card Specifications
- A.6.2 OC3 IR/STM1 SH 1310-8 Card Specifications
- A.6.3 OC12 IR/STM4 SH 1310 Card Specifications
- A.6.4 OC12 LR/STM4 LH 1310 Card Specifications
- A.6.5 OC12 LR/STM4 LH 1550 Card Specifications
- A.6.6 OC12 IR/STM4 SH 1310-4 Card Specifications
- A.6.7 OC48 IR/STM16 SH AS 1310 Card Specifications
- A.6.8 OC48 LR/STM16 LH AS 1550 Card Specifications
- A.6.9 OC48 ELR/STM16 EH 100 GHz Card Specifications
- A.6.10 OC192 SR/STM64 IO 1310 Card Specifications
- A.6.11 OC192 IR/STM64 SH 1550 Card Specifications
- A.6.12 OC192 LR/STM64 LH 1550 Card Specifications
- A.6.13 OC192 LR/STM64 LH ITU 15xx.xx Card Specifications
- A.7 Ethernet Card Specifications
- A.8 Storage Access Networking Card Specifications
- Administrative and Service States
- Network Element Defaults
- Index

1-9
Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter 1 Shelf and FMEC Hardware
1.4 E1-75/120 Conversion Panel
Note The E1-120NP FMEC can only be used in Slots 18–21 and Slots 26–29. The STM1E 1:1 FMEC can only
be used in Slots 18 and 19, 20 and 21, 26 and 27, or 28 and 29.
1.4 E1-75/120 Conversion Panel
You need an E1-75/120 conversion panel if you want to convert the balanced 120-ohm interfaces of the
E1-42 card and the corresponding FMECs to unbalanced 75-ohm interfaces.
The E1-75/120 contains eighty-four 1.0/2.3 miniature coax connectors (42 for transmit, 42 for receive)
to the customer side and two Molex 96-pin LFH connectors to the E1-42 FMEC 120-ohm side. Each of
the Molex 96-pin LFH connectors connects 21 inputs and 21 outputs. The E1-75/120 conversion panel
is intended to be used in digital distribution frames (DDFs), ETSI racks, and ANSI racks.
You can install the E1-75/120 conversion panel in the rack of your ONS 15454 SDH or in a nearby rack.
If you install the E1-75/120 conversion panel in a place where a longer cable is required, make sure that
the total cable loss of the balanced 120-ohm cable and the unbalanced 75-ohm cable does not exceed the
maximum allowed value. Refer to the Cisco ONS 15454 SDH Reference Manual for details. To ensure
that the E1-75/120 conversion panel is secure, use one or two M6 mounting screws for each side of the
shelf assembly. Figure 1-6 on page 1-10 shows the rack-mounting for the E1-75/120 conversion panel.
Note If required, the mounting brackets of the E1-75/120 conversion panel can be uninstalled, rotated
90 degrees, and reinstalled to enable 19-inch (482.6 mm) rack mounting.
FMEC
E1-120PROB
3 to 42 2.048 Mbps Molex 96-pin LFH
connector
EFCA,
Slots 26 to 29
FMEC-E3/DS3 12 34.368 Mbps
44.736 Mbps
1.0/2.3 miniature coax
connector
EFCA
FMEC STM1E 1:1 12 (protected) or
24 (nonprotected)
155.52 Mbps 1.0/2.3 miniature coax
connector
EFCA
Table 1-2 FMEC, Ports, Line Rates, and Connectors (continued)
FMEC Ports Line Rate per Port Connector Type Connector Location