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The 7700DA-DS3 Distribution Amplifier provides automatic coaxial cable equalization, reclocking and signal distribution of DS3 (44.736MB/s), signals. The 7700DA-DS3 accepts a B3ZS-encoded Alternate Mark Inversion (AMI) input signal and provides four reclocked outputs.
The 7700DA-DS3 occupy one card slot and can be housed in the 1RU 7801FR frame which holds up to four single or two dual slot modules, the 3RU 7800FR frame which has a 15 slot capacity, the portable 3RU 350FR frame which has a 7 slot capacity, or a standalone enclosure which holds a single module.
特点
- Supports DS3 (44.736MB/s)
- Accepts B3ZS-encoded AMI input signals
- Automatic cable equalization for up to 1000ft of high quality 75Ω cable
- Signal reclocking and optional jitter attenuator
- Output wave shaping for DS3 standards compliance
- High/Low output amplitude setting for long/short cable lengths
- Loss of signal (LOS) detection/indication
- Outputs 1's pattern generation upon loss of input signal
- Electrical output drive level control for enhanced distance
- Transformer coupled inputs/outputs
- Input/output transient protection
指标|
Inputs | |
|---|---|
| 标准 | DS3 (44.7346MB/s) |
| 输入数量 | 1 |
| 端口数目 | Isolated BNC per IEC 61169-8 Annex A |
| 均衡 | Automatic to 300m with Belden 8281 or equivalent cable |
| 反射损失 | > 20dB up to 44MB/s |
Outputs | |
|---|---|
| 输出数量 | 4 per card reclocked |
| 端口数目 | BNC per IEC 61169-8 Annex A |
| Waveform | Conforms to G.703 compliant masks |
| 反射损失 | > 18dB up to 44MB/s |
电气 | |
|---|---|
| 电压 | +12V DC |
| 功率 | 6 watts |
| EMI/RFI | Complies with FCC Part 15, Class A Complies with EU EMC Directive |
物理参数 | |
|---|---|
| 插槽数 | 1 |
订购信息|
| 7700DA-DS3 | DS3 Distribution Amplifier |
|---|
订购可选项 | |
|---|---|
| 注意 | • Rear plate must be specified at time of order - eg: [model]+3RU |
| Rear Plate Suffix | |
|---|---|
| +SA | Standalone Enclosure Rear Plate |
| +3RU | 3RU rear plate for use with 350FR, 7700FR-C, 7800FR or 7801FR Multiframes |
Enclosures | |
|---|---|
| 350FR | Portable Multiframe which holds 7 single slot modules |
| 7700FR-C | 3RU Multiframe which holds 15 single slot modules |
| 7800FR | 3RU Multiframe which holds 15 single slot modules |
| 7801FR | 1RU Multiframe which holds up to 4 single slot or 2 dual slot modules |
| S7701FR | 7700 Series Standalone Enclosure |