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- Description
- Specifications
The SPA-4XCT3/DS0 is a Cisco 4-port channelized T3 serial shared port adapter for Cisco ASR 1000 Series routers, and the ASR1000-SIP10 SPA interface processor takes it. Its front panel has four ports, each with a TX (transmit) connector and an RX (receive) connector.
Every port has two LEDs. A green C/A (Carrier/Alarm) LED means the port is enabled by software with a valid T3 signal and no alarms, amber means at least one alarm, and off means the port is not enabled. A green A/L (Active Loopback) LED means loopback is off, and amber means loopback is on. One STATUS LED for the whole SPA is green when the SPA is ready and operational, amber while it is being configured, and off when SPA power is off.
The connectors are 75-ohm coaxial Siemax types, and the framer processes cbit, m13/m23 and unframed T3 frames at 44.2 Mbps, the T3 line speed. The 2-port model is the SPA-2XCT3/DS0. More shared port adapters are in Cisco interface cards.
| Part number | SPA-4XCT3/DS0 |
| Type | 4-port channelized T3 serial shared port adapter |
| Ports | 4 |
| Connectors | 75-ohm coaxial Siemax, one TX and one RX per port |
| Cables | CAB-T3E3-RF-BNC-M, CAB-T3E3-RF-BNC-F, CAB-T3E3-RF-OPEN (10 feet each) |
| Framing | cbit, m13/m23, unframed T3; 44.2 Mbps |
| Encapsulation | PPP or HDLC (user-configurable) |
| Standards | ANSI and Telco; MIB RFC 2495, RFC 2496, T1.231 |
| LEDs | C/A and A/L per port; one STATUS |
| Two-port model | SPA-2XCT3/DS0 |
| Compatible with | Cisco ASR 1000 Series routers with the ASR1000-SIP10 |