Модуль Cisco VW1C3-1MFT-T1/E1
20 924 р.
Модуль Cisco VW1C3-1MFT-T1/E1
Технические характеристики
Технические характеристики
| Ports | 2-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card |
| Serial Data (channel-group*) | 2 total, 2 per port |
| Voice CAS (ds0-group**) | 48 total (T1),62 total (E1),1 per timeslot |
| PRI (pri-group***) | 2 total, 1 per port |
| Drop & Insert (tdm-group****) | 48 total (T1),62 total (E1),1 per timeslot |
| T1 Network Interface | |
| Transmit Bit Rate | 1.544 Mbps ± 50 bps/32 ppm |
| Receive Bit Rate | 1.544 Mbps ± 50 bps/32 ppm |
| Line Code | Alternate-mark-inversion (AMI), binary 8-zero substitution (B8ZS) |
| AMI Ones Density | Enforced for n x 56-kbps channels |
| Framing Format | D4 (Super Frame [SF]) and Extended Super Frame (ESF) |
| Output Level (line build-out [LBO]) | 0, -7.5, or -15 dB |
| Input Level | +1 dB0 down to -24 dB0 |
| Data-Terminal-Equipment (DTE) Interface (WIC mode) | Fractional service |
| DTE Interface (VIC mode) | G.704 or structured |
| Data-Communications-Equipment (DCE) Interface | G.704 or structured |
| E1 Network Interface | |
| Transmit Bit Rate | 2.048 Mbps ± 100 bps/50 ppm |
| Receive Bit Rate | 2.048 Mbps ± 100 bps/50 ppm |
| Data Rate | 1.984 Mbps (framed mode) per E1 port |
| Clocking | Internal and loop (recovered from network) |
| E1 National Bits | Fixed (nonconfigurable) |
| Encoding | High-density bipolar three (HDB3) |
| DTE Interface (WIC mode) | Fractional service |
| DTE Interface (VIC mode) | G.704 or structured |
| DCE Interface | G.704 or structured |