? E1 redundancy (2+2)? Power redundancy (1+1) [AC+AC, DC+DC, AC+DC]? DCE plug-in card types
? Drop & Insert function? NMP, SNMP and Web based management? EMS system supported? Compliance with ITU-G.703, G.704, G.706, G.732, and G.823.
Ethernet I/O Specifications? Bridge module - 2 channels? 10BASE-T/100BASE-TX, Full Duplex or Half Duplex? 10BASE-T/100BASE-TX, Full Duplex or Half Duplex? IEEE 802.3x flow control? Real-time filtering with 256 address tables? Automatic address learning, aging and deletion after 5 minutes? Up to 340 packet-buffering capacity? Forwarding and filtering rate at wire speed with through put latency of 1 frame.? Auto padding of undersized packets to meet the minimum Ethernet packet size requirement? Buffering modes can be selected according to the setting of WAN and LAN line speeds? Ethernet interface has automatic Twisted Pair polarity correction |
LANStandard | Fully compliant with IEEE 802.3/802.3u | Connector | Shielded RJ-45 | Speeds | 10BASE-T/100BASE-TX, Full or Half Duplex | Frames | Supports 64 to 1522 byte packet lengths, standard and extended length frames for VLAN tagging, etc. |
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Sub-E1 I/O Specifications? Each card provides two E1 loops, each loop provides E1A/E1B channel independently? Hot-Swappable? Each first E1 loop may provide external clock to be used as system clock sourceFraming | Framed CCS(PCM31) / CAS(PCM30) | CRC check | CRC4 On/Off | Bit rate | 2.048Mbps ±50 ppm | Line code | AMI / HDB3 | Line impedance | 75 ohm, unbalanced / 120 ohm, balanced | Relative receive level | 0 / -43dB | Transmit level | | Pulse amplitude | Nominal 2.37V ±10% for 75ohm | Nominal 3.00V ±10% for 120ohm | Zero amplitude ±0.1V | Jitter performance | According to ITU-T G.823 | Complies with | ITU-T G.703, G.704, G.706 and G.732 | Interface connectors | BNC for unbalanced | RJ-45 Connector for balanced | Loopback type | Remote digital loopback |
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Other Datacom I/O SpecificationsN x 64 Module, 4 channels, High Speed Data Interfaces)Interfaces types | RS-530, X.21, V.35, RS-449 and RS-232 | Interface connector | HD68 Female with appropriate cable adapter. | Line code | NRZ | Data rate | N x 64kbps, where N equal 1 to 31 in CCS and N equal 1 to 30 in CAS |
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Async Module, 6 channels, <= 38.4kbps Async or 6 channels, 64/128kbps Sync |