Cisco ASR1006 Hardware Installation Guide - Page 101
-Port Serial Interface SPA Overview
UPC - 882658196423
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Chapter 3 Overview: Cisco ASR 1000 Series Aggregation Services Routers SPAs 4-Port Serial Interface SPA Overview Figure 3-38 shows the connectors on the 4-Port Channelized T3 SPA, and Table 3-36 provides the signal descriptions for these connectors. Table 3-36 2-Port and 4-Port Channelized T3 SPA Connectors Connector Label TX RX Meaning Transmitted signals appear on the center contact, and the outer shield is ground for the 75-ohm RG-59 coaxial cable you attach to the TX Siemax connector. Received signals appear on the center contact, and the outer shield is ground for the 75-ohm RG-59 coaxial cable you attach to the RX Siemax connector. 4-Port Serial Interface SPA Overview The following sections describe the 4-Port Serial Interface SPA: • 4-Port Serial Interface SPA LEDs, page 3-59 • 4-Port Serial Interface SPA Interface Specifications, page 3-60 • 4-Port Serial Interface SPA Cables, Connectors, and Pinouts, page 3-61 4-Port Serial Interface SPA LEDs The 4-Port Serial Interface SPA has three types of LEDs: two LEDs for each port on the SPA, and one STATUS LED, as shown in Figure 3-39. Figure 3-39 4-Port Serial Interface SPA Faceplate 1 2 3 ACTIVE 0 CD/ LB ACTIVE 1 CD/ LB ACTIVE 2 CD/ LB ACTIVE 3 CD/ LB STATUS SPA-4XT-SERIAL 1 ACTIVE LED 2 CD/LB (Carrier Detect/Loopback) LED 3 STATUS LED 250158 OL-14126-12 Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide 3-59