DATA CONNECT ENTERPRISE
24 User’s Manual - SM202T/SMV23 Modem
Appendix B
Specifications
General Specifications
Data rate:
0-1200 bps
Data format:
Transparent to DTE
DTE interface:
EIA RS-232/V.24, or RS-485 compatible
Line conditions:
TELCO voice band 4- or 2-wire leased line, conditioned or unconditioned
lines. Private metallic circuits
Operating modes:
2-wire half-duplex or 4-wire full-duplex
Modulation:
FSK, Bell 202T or V.23 compatible
x Mark = 1200 Hz (1300 Hz, V.23)
x Space = 2200 Hz (2100 Hz, V.23)
x Soft Carrier = 900 Hz (Bell 202T only)
RTS-CTS Delay:
10 or 33 ms (Bell 202T)
33 ms (V.23)
Receiver dynamic range:
0 to –43 dBm
Operating temperature:
-40qC to +85qC
Power supply:
Wide range switching power supply:
x IG202T (AC version): 90 to 265 Volts AC, 50/60 Hz, single phase or
90 to 400 VDC
x IG202T-DC (DC version):10 to 60 Volts DC
Surge protection:
Leased line, up to 15KV
Carrier control:
Constant or switched, DIP switch selectable
Carrier loss recovery:
Automatically
Auto RTS:
Support DTE without hardware RTS
Anti-streaming:
30-second timer to prevent transmitter lock-up network
Mechanical Specifications
Enclosure:
ABS with removable top cover
Dimensions:
4.1” wide x 4.9” long x 1.40” high
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