Cisco 7600 SIP 200 Hardware Installation Guide - Page 73
-Port OC-12c/STM-4 POS SPA Overview
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Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters 1-Port OC-12c/STM-4 POS SPA Overview 1-Port OC-12c/STM-4 POS SPA Overview The 1-Port OC-12c/STM-4 POS SPA is single-height SPA that installs into one SIP subslot. The 1-Port OC-12c/STM-4 POS SPA with a small form-factor pluggable (SFP) optical transceiver module provides SONET and SDH network connectivity with a bandwidth of 622.08 Mbps. For more information about SPA bandwidth, see the "Bandwidth Oversubscription" topic in this chapter. For more information about SPAs and their compatibility with SIPs and modular optics, see the "SIP and SPA Product Overview" chapter in this guide. The following sections describe the 1-Port OC-12c/STM-4 POS SPA: • 1-Port OC-12c/STM-4 POS SPA LEDs, page 3-27 • 1-Port OC-12c/STM-4 POS SPA Interface Specifications, page 3-28 • 1-Port OC-12c/STM-4 POS SPA SFP Optical Transceiver Modules and Cables, page 3-28 1-Port OC-12c/STM-4 POS SPA LEDs The 1-Port OC-12c/STM-4 POS SPA has three types of LEDs. There are two LEDs for each port on the SPA, and one STATUS LED. Figure 3-22 shows an example of these LEDs on a 1-Port OC-12c/STM-4 POS SPA. Figure 3-22 1-Port OC-12c/STM-4 POS SPA Faceplate 1 STATUS 129137 C/A A/L 0 2 SPA-1XOC12-POS 3 1 C/A (Carrier/Alarm) LED 2 A/L (Active Loopback) LED 3 STATUS LED The 1-Port OC-12c/STM-4 POS SPA LEDs are described in Table 3-14. Table 3-14 1-Port OC-12c/STM-4 POS SPA LEDs LED Label C/A A/L Color Off Green Amber Off Green Amber State Off On On Off On On Meaning Port is not enabled by software. Port is enabled by software, and there is a valid SONET signal without any alarms. Port is enabled by software, and there is at least one alarm. Port is not enabled by software. Port is enabled by software, loopback is off. Port is enabled by software, loopback is on. OL-5052-14 Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide 3-27