Specifications
Version 5.4 TX3 Telephone Access System Installation and Operation Manual 97
LT-969 Copyright 2019
Compatible Modems
• TFM-560U High Speed USB 2.0 Fax Modem
• TFM-561U High Speed USB 2.0 Fax Modem
• Hiro H50113 56K V.92 USB Fax Modem
• StarTech USB56KEM2 56k V.92 USB Fax Modem
• Zoom 56K V.92 56K USB Mini External Fax Modem
• USRobotics USR5639 56K USB Softmodem
Operating Temperature
50°C (122°F) to -20°C(-4°F)
For temperatures where the Telephone Access System will operate below 0°C
(32°F) at any time, install the TH-102K Thermostat Heater within the enclosure.