Cisco 1 Port ATM OC3 NM-1A-OC3-POM Hoja De Datos
Los códigos de productos
NM-1A-OC3-POM
Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Cisco 3800 and 3900 Series ATM OC-3 Network Module
Cisco Systems
®
extends WAN connectivity by adding high-speed ATM access to remote branch offices
with the Cisco
®
3800 and 3900 ATM OC-3 Network Module.
Overview
A 155-Mbps ATM OC-3 network module is available on the Cisco 3825 and 3845 integrated services routers and on
Cisco 3925 and 3945 Integrated Services Routers, starting with Cisco IOS
®
Software Release 12.4(3) Mainline and
15.0(1)M respectively(Figure 1). The network module supports the ATM forum standard ATM Adaptation Layer 5
(AAL5) with the following ATM quality of service (QoS) traffic classes: unspecified bit rate (UBR), UBR+, real-time
variable bit rate (VBR-rt), non-real-time VBR (VBR-nrt), available bit rate (ABR), and constant bit rate (CBR). Voice
over IP (VoIP) and H.323 over ATM is supported over the WAN using the currently available onboard voice digital
signal processors (DSPs), analog voice and fax network modules, and voice interface cards.
The network module has modular optics supporting the Cisco pluggable optical modules (POMs) and Cisco Small
Form-Factor Pluggables (SFPs), simplifying the selection of network modules from six offerings to one. The SFPs
support STM-1 framing standards over multimode, single-mode intermediate-reach, and single-mode long-reach
fiber-optic interfaces. The module is a single-port module with LC-type connector. The single-mode SFPs combined
with the ATM network module provide high-speed trunking for users with access to a fiber WAN, whereas multimode
is ideal for connecting high-speed servers, switches, or hubs equipped with OC-3/STM-1 fiber connections.
Cisco IOS SP Services feature sets are required to support ATM. A maximum of one ATM OC-3 network module is
recommended on the Cisco 3825 and Cisco 3925, and a maximum of two ATM OC-3 network modules are
recommended on the Cisco 3845 and Cisco 3945
Figure 1. Cisco 3800 and 3900 Series ATM OC-3 Network Module
Product Summary
The Network module supports three different SFPs, each with a different physical interface, support OC-3c/STM-1
multimode, OC-3c/STM-1 single-mode intermediate-reach, and OC-3c/STM-1 single-mode long-reach modes,
however the module supports ATM OC-3 only. Table 1 lists the SFPs supported on the new network module.