Cisco 3825 Hardware Installation Guide - Page 186

ATM OC-3 Network Modules Chapter 11 Connecting ATM Network Modules Table 11-6 Fiber-Optic Cable Specifications Standard Maximum Path Length Cabling ISO/IEC 9314-3 1.24 miles (2 km) all cables in a connection, end to end 62.5-micron core with an optical loss of 0 to 9 dB, or 50-micron core with an optical loss of 7 dB IEC 793-2 27.9 miles (45 km) for SML 9-micron core and 9.3 miles (15 km) for SMI ANSI/TIA/EIA-492 27.9 miles (45 km) for SML 9-micron core CAAA and 9.3 miles (15 km) for SMI Note A single fiber link should not mix 62.5- and 50-micron cable. 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. Supported platforms are: • Cisco 3825 integrated services router • Cisco 3845 integrated services router Figure 11-17 ATM OC3-POM Network Module ATM NM-1A-OC3-POM CLASS 1 LASER PRODUCT LASERPRODUCT DER KLASSE 1 PRODUCT LASER DE CLASSE1 PRODUCTO LASER CLASE 1 ATM 0 RXCR RXCL TXCL RXALM EN 127722 The ATM interface is the small form-factor pluggable (SFP) optical port labeled ATM 0. See Figure 11-17. The optical interface is provided by an SFP module that is inserted into the SFP port. 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: • Multimode (MM) - POM-OC3-MM 11-10 Cisco Network Modules Hardware Installation Guide OL-2485-20