Rugged modems designed for industrial use -

Dial up - temperature rated - High voltage surge protection - AC and DC power
  • Polarized locking power connectors
  • Dial up phone lines up to 56 Kbps
  • HX Telco line surge protected
  • -40 to +85 C Temperature rated
  • DB25 pin data connector
  • Global Compliance
  • Telecom approved in over 50 countries
  • V.44 & V.42bis data compression
  • V.42 Error correction
  • Intelligent DAA detects line status
  • Low power/sleep mode
  • Fast POS V.29 & V.22bis Fast Connect
  • Extended AT Commands
  • All HX models have a power converter or operates from 5 VDC input
  • DC Powered with optional DC-DC supplies
  • DC 9-18, 18-36 or 36-72
  • Size: 5 x 3 x 1 inches
  • Metal case
Click HERE for the printer-friendly PDF
The Hidex II V.34bis Industrial Grade Modem is the most versatile model for Dial up or leased analog telephone line interconnect. The Hidex HX II 33T offers speeds up to 56K dial up. They are temperature tested, rugged modems designed for Industrial applications. Directly connected to RTU’s, traffic controllers, variable message signs or any number or other applications, they communicate at 300 bps to 56kbps over analog telephone lines. All HX models have High voltage surge protection on the telephone lines. The power converter delivers 5VDC from 100 to 240 VAC, 50-60 Hz with World Wide safety approvals and a locking connector to prevent vibration disconnects. A wide voltage range of DC power models are optional. Specify your choice of 9 to 72 VDC. 
Hidex Model HXII 33T, 33.6Kbps Technical Specifications
Category Description
Client-to-Server Data Rates Supports V.34bis data rates
AGC Dynamic Range 43 dB
Data Rates 33,600; 31,200; 28,800; 26,400; 24,000; 21,600; 19,200; 16,800; 
  14,400; 12,000; 9600; 7200; 4800; 2400; 1200; 0-300 bps
Command Buffer 60 characters
DAA Isolation 1500 VAC 
Data Compatibility V.34 enhanced, V.34, V.32bis, V.32, V.22bis, V.22; Bell 212A 
  and 103/113, V.21 & V.23
Data Compression ITU-T V.44 (6:1 throughput); V.42bis (4:1 throughput); MNP 5 (2:1 throughput) 
Fax Compression MH, MR, MMR
Data Format Serial, binary, asynchronous (available with parallel interface)
Diagnostics Local analog loop, local digital loop, remote digital loop
Dimensions 5 x 3 x 1 inches plus mounting tabs
Case Material Black zinc oxide plated steel
Error Correction  Data Mode: V.42 (LAP-M or MNP 3–4)
Fax Compatibility ITU-T “Super” Group 3; Class 1.0 (2.0, 2.1 – V.92 build only)
  Group 3, Class 1 and 2, T.4, T.30 Annex A & C, V.21, V.27ter, V.29,
  V.34, V.17, and TIA/EIA TR29.2 
  V.34 Super G3 fax at speeds up to 33.6Kbps
  V.17 G3 fax at speeds up to 14.4Kbps
Fax mode error correction T.30 Annex A & C
Fax Data Rates 33,600; 31,200; 28,800; 26,400; 24,000; 21,600; 19,200; 16,800; 
  14,400; 12,000; 9600; 7200; 4800; 2400; 1200; 0-300 bps
  XON/XOFF (software), RTS/CTS (hardware)
Operational Temperature –40 to +85° C ambient under closed conditions; humidity range
  20 - 90% (non-condensing)
Power Consumption Typical: 40ma at 12VDC
  Standby or Sleep: 20ma at 12VDC
  Maximum: 50ma at 12VDC
Receiver Sensitivity –43 dBm under worst-case conditions
Serial Speeds Serial port data rates adjustable to 300, 1200, 2400, 4800, 9600, 
  19,200, 38,400, 57,600, 115,200, and 230,400 bps
Storage Temperature –50 to +100° C
Model Number: HX II 33T
Registration No: AU7USA-25814-M5-E
Ringer Equivalence: 0.3B
Modular Jack (USOC): RJ11
EMC Approvals FCC Part 15, Canadian EMC, EN 55022, EN 55024, GB4943, GB9254
Intelligent Features Fully AT command compatible, Sleep mode Autodial, redial, Pulse or tone dial, Dial pauses, Auto answer Adaptive line probing, Automatic symbol and carrier frequency during start-up, re train, and rate renegotiations. DTMF detection, Distinctive ring, Call status display, auto-parity and data rate selections Keyboard-controlled modem options, On-screen displays for modem option parameters, remote configuration, DTR dialing, phone number storage flash memory for firmware updates, NVRAM storage for user-defined parameters
Hidex II 33T Quick Start Manual
Hidex AT Commands