Features:

• 4 Analog Inputs (0-20mA)
• 4 Analog Outputs (0-20mA)
• Bi-directional Communication using a Phone Line
• Uses MODBUS Protocol for Reliable Data Transfer
• 4 Dry Contacts and 4 Analog Inputs
• 4 'C' Relay Contacts and 4 Analog Outputs
• Uses Analog Half-Duplex Leased Telephone Line
• No Calibration Required
• Microprocessor Controlled for High Accuracy
• Power: 117 VAC 50/60 Hz (Optional 24 VDC)
• Built-in Overvoltage Protection on Telephone Line
• High Noise Rejection
• CSA and NRTL Approved (LR51078)