This document describes the features and characteristics of the Sanhui CTI series voice cards SHD-240/480A-CT/cPCI and SHD-240/480S-CT/cPCI, including the number of supported E1s, the number of voice channels, full-duplex recording and playback, signaling processing, DTMF signal and FSK signal reception and transmission, and other features.
The SHD-240/480A-CT/cPCI and SHD-240/480S-CT/cPCI are CompactPCI‑based digital relay voice cards that support up to 16 E1 interfaces per card (up to 480 voice channels) and provide full‑duplex recording/playback, ADPCM compression, and signaling processing for both 7th‑level and ISDN protocols. The cards feature CT‑BUS H.110 hot‑plug capability, distributed conference functions, and built‑in lightning protection.
The manual covers hardware structure, system requirements, installation procedures, hot‑plug operation, and detailed technical parameters such as dimensions, power consumption, environmental limits, and audio codec support. It also provides guidance for driver installation and configuration of digital relay monitoring parameters. This manual is written in Chinese.
| Physical dimensions (card) | 233 mm × 162.5 mm (6U) |
|---|---|
| Physical dimensions (backplane board) | 233 mm × 82 mm |
| Weight (card) | ≈ 300 g |
| Operating temperature | 0 °C – 55 °C |
| Storage temperature | -20 °C – 85 °C |
| Maximum power consumption | ≤ 25 W |
| E1 interfaces per card | Up to 16 E1 (480 voice channels) |
| Audio codec support | CCITT A‑law, μ‑Law, IMA‑ADPCM |
| E1 physical interface | G.703 compliant, 75 Ω unbalanced & 120 Ω balanced |
| Signal‑to‑noise ratio | ≥ 38 dB |
| Echo return loss (playback) | ≥ 40 dB |
One card can support up to 16 E1 interfaces, providing a total of 480 voice channels.
The cards consume no more than 25 W of power.
The card operates between 0 °C and 55 °C.