The Sixnet VT-MODEM, from Red Lion, is a rugged industrial modem for operation in electrical enclosures in harsh environments. Each VT-MODEM supports all standard Hayes AT commands, Fax Class 1and Class 2 commands, and S-registers and therefore can be set-up as an external modem on any PC. The VT-MODEMs are compatible with any telecommunications or dial-up networking software.

The VT-MODEM allows easy access to PLCs, input / output (I/O), and other devices via dial-in telephone connections. The modem can mount on a DIN rail or panel for convenient and easy installation adjacent to other DIN rail components inside of new or existing enclosures. Most Windows software can communicate through a VT-MODEM to remote devices to perform file transfers, diagnostics, program debugging, and many other operations. All Sixnet Industrial Modems allow communication to remote sites for data retrieval or diagnostics.

NOTE: All VT-MODEM models communicate over analog phone lines only.

Rugged Industrial Modem Features

Telephone Lines

• Max. data rate 33.6 kbps for -1
• Compatibility V.90, V.92 (-5 only); V.34, V.32 bis, V.32, V.22,
• V.22A/B, V.23, V.21, Bell 212A and 103
• Data compression V.44; V.42 bis, MNP 5
• Error correction V.42 MNP 2-4
• Max. fax rate 14.4 kbps for -1
• Fax capabilities V.17,V.29/V.27/V.21, FClass 1,1.0 (-1,-2,-3)
• Ringer and jacks 0.3 and RJ11 (line and auxiliary)

RS-232 Port

• Max. RS-232 Rate 115.2 kbps for -1
• RS-232 (DCE) TD, RD, CTS, RTS, CD, DTR, DSR, RI, GND
• Command Set standard AT and S register
• Status LEDs CD, DTR, RD, TD, Power

​General Characteristics

• Input voltage 10-30 VDC for -1
• Input current @ 24 VDC (typical)
• 50 mA (Sleep mode 30 mA)
• Operating Temp. -30° to 70°C (Storage: -40° to 85°C)
• Humidity 5% to 95% RH (non-condensing)
• Flammability UL 94V-0 materials
• Telecom Ratings FCC part 68, Industry Canada CS03-8,
• CTR21 (98/482/EC); ACA TS 001; ACA TS 002
• Electrical Safety UL 508, CSA C22.2/14; EN61010-1 (IEC1010), IEC 950, AS/NZS3260
• EMI emissions FCC part15, ICES-003, Class A; EN55022; AS/NZS3548
• EMC immunity EN50082-1 (IEC801-2, 3, 4)
• Vibration IEC68-2-6
• Hazardous locations (Zone 2) UL1604, CSA C22.2/213 (Class I, Div 2, Groups A, B, C, D); Cenelec, EN50021 (EEx nA II T4)
• DIN-rail or panel mounting

VT-MODEM from Sixnet / Red Lion Model Line Up

• VT-MODEM-1 – Workhorse for general industrial applications. Supports baud rates up 33.6K (V.34)
• VT-MODEM-2 – Can automatically dial out on a contact closure from any PLC or other device
• VT-MODEM-3 – Features RS422/485 port in addition to the RS232 port. Accepts power up to 52 VDC

NOTE: All modems include a RS232 modem cable (DB9) and complete Windows software.