Cisco 7600 SIP 200 Hardware Installation Guide - Page 68
OC-3c/STM-1 POS SPA Interface Specifications, OC-3c/STM-1 POS SPA SFP Optical Transceiver Modules
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2-Port and 4-Port OC-3c/STM-1 POS SPA Overview Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters The 2-Port and 4-Port OC-3c/STM-1 POS SPA LEDs are described in Table 3-12. Table 3-12 2-Port and 4-Port OC-3c/STM-1 POS SPA LEDs LED Label C/A A/L STATUS Color Off Green Amber Off Green Amber Off Amber Green State Off On On 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. SPA power is off. SPA power is on and good, and SPA is being configured. SPA is ready and operational. OC-3c/STM-1 POS SPA Interface Specifications The framer processes incoming and outgoing SONET or SDH frames. The framer operates at OC-3c/STM-1 (155.52 Mbps) line rates. Packet data is transported with a user-configured encapsulation [such as Point-to-Point Protocol (PPP)] and is mapped into the STS-3c/STM-1 frame. The OC-3c/STM-1 POS SPA interface is compliant with RFC 1619, PPP over SONET/SDH, and RFC 1662, PPP in HDLC-like Framing. The OC-3c/STM-1 POS SPA also provides support for SNMP agent v1 (RFC 1155-1157), and Management Information Base (MIB) II (RFC 1213). OC-3c/STM-1 POS SPA SFP Optical Transceiver Modules and Cables The POS SPA uses a small form-factor pluggable (SFP) optical transceiver module installed in each port for SONET and SDH single-mode and multimode optical fiber connection. 3-22 Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide OL-5052-14