Cisco CISCO2650 - 2650 Router Hardware Installation Manual page 186

ATM OC-3 Network Modules
Table 11-6 Fiber-Optic Cable Specifications
Standard
ISO/IEC 9314-3
IEC 793-2
ANSI/TIA/EIA-492
CAAA
A single fiber link should not mix 62.5- and 50-micron cable.
Note
ATM-OC3-POM Network Module for Cisco 3800 Series Routers
The NM-1A-OC3-POM network module provides a high-performance fiber uplink port for Cisco 3800
series integrated services routers. See
•
•
Figure 11-17 ATM OC3-POM Network Module
ATM
NM-1A-OC3-POM
The ATM interface is the small form-factor pluggable (SFP) optical port labeled ATM 0. See
Figure
Fiber-optic cables to the network are attached to the SFP module.
The network module has three modes of operation. The mode of operation is determined by the SFP
module that is used.
Caution Only SFP modules provided by Cisco should be used in the network module. SFP modules that are not
provided by Cisco have not been evaluated for reliability or user safety.
The modes of operation and usable SFP modules are:
•
Cisco Network Modules Hardware Installation Guide
11-10
Maximum Path Length
1.24 miles (2 km) all cables
in a connection, end to end
27.9 miles (45 km) for SML
and 9.3 miles (15 km) for
SMI
27.9 miles (45 km) for SML
and 9.3 miles (15 km) for
SMI
Cisco 3825 integrated services router
Cisco 3845 integrated services router
11-17. The optical interface is provided by an SFP module that is inserted into the SFP port.
Multimode (MM)
POM-OC3-MM
–
Chapter 11
Cabling
62.5-micron core with an
optical loss of 0 to 9 dB, or
50-micron core with an
optical loss of 7 dB
9-micron core
9-micron core
Figure 11-17. Supported platforms are:
CLASS 1 LASER PRODUCT PRODUCT LASER DE CLASSE1
LASERPRODUCT DER KLASSE 1 PRODUCTO LASER CLASE 1
ATM 0
RXCR RXCL TXCL RXALM
Connecting ATM Network Modules
EN
OL-2485-20