Introduction to the SINAUT ST7 system
1.4 The classic SINAUT ST7 modems
Station control system
36 System Manual, 07/2009, C79000-G8976-C178-07
MD3
Permitted ambient conditions
• Operating temperature
• Transport/storage temperature
• Relative humidity
• 0 °C through +60 °C
• -40 °C through +70 °C
• Max. 95 % at +25 °C
Construction
• Module format
• Dimensions (W x H x D) in mm
• Weight
• Compact module for S7-300, double width
• 80 x 125 x 120
• Approx. 300 g
Degree of protection IP 20
Transmission path Analog dial-up telephone network
Dedicated line, 2-wire twisted pair, without
loading coils
Available ITU transmission standards in the analog
telephone network
• V.22 1200 bps, duplex
• V.22bis 2400 bps, duplex
• V.32bis 4800 bps, duplex
• V.32bis 9600 bps, duplex
• V.32bis 14,400 bps, duplex
• V.34bis 19200 bps, duplex
• V.34bis 33,600 bps, duplex
Error correction V.42 and MNP4
Data compression V.42bis and MNP5
Modem control
• AT commands
• V.25bis commands
Metering pulse filter can be adjusted to
• 12 kHz
• 16 kHz
Dialing mode
• Tone dialing
• Pulse dialing
Loop power section Exists, can be switched in or out
Loudspeaker Exists, can be switched on or off
Line adjustment
• 600 ohms
• Zr (frequency-dependent)
Transmit level can be set to
• -10 dB
• -15 dB
Asynchronous character format 10 or 11 bits
Standard dedicated line profile
• 300 bps (direct)
• 1200 bps (direct)
• 2400 bps (direct)
• 9600 bps (direct)
• 19,200 bps (direct)
• 19200 bps (buffered)
• 33,600 bps (buffered)
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