Synway Information Engineering Co., Ltd
Appendix A Technical Specifications
Dimensions
Board: 230×163mm2 (excluding handles
+5V DC: 600mA
)
(excluding handles)
Weight
Board:
≈
500g (including 8 dual channel
modules)
Environment
Operating temperature: 0
℃
—55
℃
Storage temperature: -20
℃
—85
℃
Humidity: 8%— 90% non-condensing
Input/output Interface
Headset jack: One
φ
3.5 stereo jack
Telephone line jack: Eight 4-pin RJ11 jacks;
DB44
Audio Specifications
CODEC: CCITT A/µ-Law 64kbps,
IMA ADPCM 32kbps
Output power:
≥
50mW
Distortion:
≤
2%
Frequency response: 300-3400Hz(±3dB)
Signal-to-noise ratio:
≥
38dB
Echo suppression:
≥
40dB
Maximum System Capacity
Up to 10 boards concurrently per system; up to
16 channels per board
Power Requirements
-12V DC: 80mA
Maximum power consumption:
≤
12W
Impedance
Input impedance:
≥
1M
Ω
/500V DC;
≥
10k
Ω
/1000V AC
Insulation resistance for PC isolation
from telephone line:
≥
2M
Ω
/500V DC
Telephone line impedance:
Compliant with the national standard
impedance for three-component network
Audio Encoding & Decoding
16Bit PCM 128kbps
8Bit PCM 64kbps
A-Law
64kbps
µ-Law 64kbps
VOX 32kbps
ADPCM
32kbps
GSM
13.6kbps
MP3
8kbps
Sampling Rate
8kHz
Safety
Lightning Resistance: Level 4
Certification: FCC; CE; CCC
Rear connection panel: 230×82mm2
+12V DC: 300mA
SHT-16B-CT/cPCI 2.0, SHT-16B-CT/cPCI/FAX (MP3) 2.0 Hardware Manual
(Version 2.2)
Page 20
