IUC-X9-TXC & IUC-7X-RXC: Telephone Transmission System
for 1 Analog Signal and 2 Digital Signals                                                             

  • High Input-Output-Power Isolation (1500VAC Test)
  • Industry Standard Inputs: 4-20 mA, 1-5 VDC, and more
  • Industry Standard Output: 4-20 mA, 1-5 VDC, and more
  • Send 1 Analog & 2 Digital Signals over Standard Class C Phone Line
  • Channel Fail Contact
  • Easy Field Calibration (Typ. calibration time < 2 min. using handheld meter only)
  • Microprocessor Controlled for High Accuracy
  • Two Wire Supply Option for Two Wire Transmitters
  • Power: 117 VAC 50/60 Hz (Optional 24 VDC)
  • High Noise Rejection
  • CSA and NRTL Approved (LR 51078)

The IUC-X9-TXC is a telephone line transmitter which takes in one of a number of standard analog signals and two dry contacts. It has a 600 Ohm impedance matched output which can connect directly into a class C telephone line. A frequency signal is sent to the IUC-7X-RXC telephone line receiver where it is converted back to an analog signal and two "C" Contacts. The IUC-7X-RXC also has an impedance matched input to allow direct connection to the phone line. A built in line monitor detects line failures and ramps the analog output to 0% or 100%.

  • Isolation: Input to Output to Power 1500 VAC (test)
  • Accuracy/Linearity: 0.3% max., 0.1% typ. (@ 20-100% Output)
  • Operating Temperature: -40 Deg.C. to +50 Deg.C
  • Temperature Effects: 0.5% max., 0.2% typ. (for 40 Deg.C. change)
  • Loop Drive: Max. 1000 Ohms at 20mA