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The CHOC-12 line card utilizes the multiplexing features usually found in SONET transmission equipment. The new line card segments the single OC-12 port into 12 digital signal level three (DS3) channels on a single port and also supports Frame Relay encapsulation of IP packets thus reducing the cost and complexity of IP and Frame Relay DS3 (45 Mbps) and OC-3 (155 Mbps) connections.
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Description |
Specification |
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DRAM |
64 MB DRAM, upgradable to 256 MB |
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Packet Memory |
16 MB packet buffer memory is expandable to 64 MB or greater, that allows for optimization to maximizes transmission control protocol (TCP) goodput |
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Processor type |
RS 7000 |
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Slot planning |
Occupies a single slot |
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Height x Depth |
14 x 18 in. (35.6 x 45.7 cm) |
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Weight |
6 lb (2.7 kg) |
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LEDs |
Active Receive Carrier Detect - OC-12 level |
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Connector |
SC-duplex connector |
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Transceiver |
Power Budget |
Transmit Power |
Receive Power |
Maximum Distance |
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Single Mode Intermediate Reach |
12 dB |
-15 to -8 dBm, @1270 to 1380 nm |
-28 to -8 dBm |
15 km |