Fiber O

Model TC8930
Party-Line Digital Mixer (4/8 ports)
TC8930S Standalone Unit

TC8930R (Housed in TCRM195 Rackmount Card Cage,
2-Card Unit Shown)

Features  Product or Application Questions (click here)

  • Party-Line Up to 7 Users
  • 2-Wire Analog PBX and Key System Compatible
  • Power Redundancy
  • 12VDC, Optional 24VDC or 115/230VAC
  • Industrial Hardened (optional)
  • Hi-Temp2 Version Exceeds NEMA & Caltrans Traffic Control Specs
  • LED Indicators for Each Channel’s Tx & Rx Status
  • Stand Alone or Rackmount


Designed specifically for telephone Party-Line applications, the TC8930 receives a 2-wire analog POTS signal and broadcasts up to 7 remote phones. One user can have a conversation with 7 other users on the same line.

The TC8930 has one FXO port, which connects to the PBX or Key System extension. It has seven FXS ports, each one of them connects to 2-wire analog phones. Each remote port provides its own ring generator that rings a conventional 2-wire analog phone. A special 1 X 3 version is available.

Diagnostic LEDs for Tx and Rx are included for each channel. Additional LEDs are provided for Alarm, Power A, Power B, and Vcc. Power is 12VDC standard, optional 24VDC, -48VDC, 125VDC or 115/230VAC with an external power cube. Extended and extreme temperature versions (-20°C to 70°C, -40°C to 80°C), are also available for harsh environments


TC8916 Specifications

Data Rates
Telephone 300 Hz to 3.4 Khz
Channel Capacity
Standard 4 (1 Local + 3 Remotes)
Optional 8 (1 Host + 7 Remotes)
Connector RJ11 Female
Interface 2 Wire POTS
Bit Error Rate 1 in 109 or Better
Visual Indicators
System Status Alarm, Power A, Power B, Vcc
Channel Status Tx Rx
Power source I2VDC @1.2A
optional: 115 or 230VAC with external power cube
Operating: Standard
                High Temp 1 option
                High Temp 2 option
-100C to 500C
-200C to 700C
-400C to 800C
Storage -400C to 900C
Humidity 95% non-condensing
Physical 8Channel Stand Alone Unit
Height (3.53 cm) 1.39"
 Width (18.13 cm) 7.14"
 Depth (24.89 cm) 9.80"
 Weight (887 gm) 1.96 lb

Typical Application (Application Questions)

The TC8930 is often used in partyline phone applications. Up to 8 users can be link into a party-line conversation.