SixNet VT-Modem-4
Lease Line modem

2 wire lease line leased line modem for industrial rated environments that will work on the hottest and coldest days.

  • Rated for -30° to +70°C operation
  • Supports point to point continuous connections over leased lines
  • Dialup and auto-answer over PSTN
  • Tough enough for Class I, Div. 2 (Zone 2) hazardous locations
  • DIN Rail or flat panel mounting
  • DC powered - No more bulky AC adapters


Modes of operation 2-wire leased-line or dial-up
Maximum data rates 33.6 Kbps
Phone compatibility V.34 enhanced, V.34, V.32 bis, V.32, V.23,
(ITU and Bell standards) V.22 bis, V.22, V.21, Bell 212/103/113
Data compression V.42 bis (4:1) and MNP 5 (2:1)
Error correction V.42 LAPM and MNP 3-4
Maximum fax rate 33.6 Kbps
Fax compatibility ITU-T “Super” Group 3; Class 1.0, 2.0, 2.1; Group 3, Class 1 and 2, T.4, T.30, V.21, V.27ter, V.29, V.34, V.17, and TIA/EIA TR29.2
Ringer equivalent 0.3
Line and auxiliary jack RJ11 (one for each)
Maximum RS232 rate 115.2 Kbps
RS232 (DB9 female) signals TD,RD,CTS,RTS,CD,DTR,DSR,RI,GND
Command set AT standard & S registers, class 1 & 2 fax
Phone line receiver sensitivity -43dBm under worst case conditions
Phone line transmit level -11dBm
Max RS232 Rate 115.2 kbps
RS232 Signal Support TXD, RXD, CTS, RTS, DCD, DTR, DSR, RI, GND
RS232 Connector DB9 female
Command Set All standard AT and S register commands, including Class 1 and Class 2 Fax commands
Dimensions 3.23W x 4.75L x 1.35H inches (8.2W x 12.1L x 3.4H cm)
Input Power 10-30 VDC
Input Current (normal mode) 75 mA @ 24 VDC (typical)
Input Current (low power mode) 52 mA @ 24 VDC (typical)
Operating Temperature -30° to 70° C
Storage Temperature -30° to 85° C
Humidity 5% to 95% RH (non-condensing)
Flammability (module plastic) UL 94V-0 materials
Telecom FCC part 68 (Reg. #5KNUSA-32535-MM-E), Industry Canada (Cert. #29918926A),
Electrical Safety UL 508, CSA C22.2/14; EN61010-1 (IEC1010),CE
EMI Emissions FCC part 15, ICES-003, Class A; EN55022, CE
EMC immunity EN50082-1 (IEC801-2, 3, 4), CE
Vibration IEC68-2-6
Hazardous locations UL 1604, CSA C22.2/213-M1987, (Class I, Div 2, Groups A, B, C, D), EN50021 (zone 2)
Marine/offshore locations Det Norske Veritas (DNV) No. 2.4 (Class A and B)


see PDF specs page

see other Sixnet VT-modem pages


301-924-7400 EXT 25

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