SHD-120/240D-CT/PCI, SHD-120/240D-CT/PCI/EC digital repeater voice card is a digital repeater line voice card using PCI bus. This series of voice cards can realize most of the functions required by the telephone voice processing system connected by E1 and T1 digital repeater lines, and enhance the echo cancellation capability; at the same time, the DMA data reading and writing method has the advantages of high transmission rate and low CPU occupancy, further improving system performance.
The Sanhui SHD-120/240D-CT/PCI is a PCI‑bus digital voice card that supports E1/T1 digital trunk lines for telephone voice processing. It provides up to 8 E1/T1 channels, echo cancellation, AGC, DTMF detection, and multiple codec formats.
The manual includes a product overview, installation steps, hardware specifications, LED indicator definitions, interface wiring, power and safety requirements, and contact information for technical and sales support. This manual is written in Chinese.
| Dimensions | 310 mm × 115 mm (excluding mounting plate) |
|---|---|
| Weight | ≈250 g |
| Operating Temperature | 0 °C to 55 °C |
| Storage Temperature | -20 °C to 85 °C |
| Humidity (operating) | 8 %–90 % non‑condensing |
| Maximum Power Consumption | ≤15 W |
| Maximum Channels per Card | 120 or 240 channels |
| Maximum System Capacity | 8 cards simultaneously |
| Audio Codec Formats | A‑law (G.711), μ‑law, IMA ADPCM, 16‑bit linear PCM, MP3 |
| Recording/Playback Codec | CCITT A/μ‑Law 64 kbps |
The card consumes no more than 15 W of power.
Each card can handle up to 120 or 240 channels, depending on the model.
The card operates from 0 °C to 55 °C and 8 % to 90 % relative humidity without condensation.
The card uses RJ45 connectors, which can be converted to BNC with the supplied cable.