Model TC1910

Telephone to 10Base-T Ethernet Extender




        Features  Product or Application Questions (click here)

  • Extends Telephone Link via 10 Base-T Ethernet Connection
  • Connects to Hubs, Routers, Bridges, Transceivers, etc.
  • Automatic Power-Up, Recovery Connection
  • Web-Based Configuration Interface
  • PBX & Key System (POTS) Compatible
  • Voice Bandwidth from 300Hz to 3.4Khz for Toll Quality Sound
  • FXO/FXS Selectable
  • 18 LEDs for Diagnostics & Status Monitoring
  • Built-in Dry Contact Relay for External Alarm and Ringer Connection
  • 12VDC, Optional 24VDC or 115/230VAC with Power Adapter


The TC1910 Ethernet Telephone Extender enables telephone service over a LAN via 10Base-T Ethernet connections. It has a built-in Codec that digitizes voice and converts to packets for transmission between local and remote TC1910s with designated IP addresses. It is compatible with PBX and Key Systems (POTS).

LAN connections can be made by most types of Ethernet devices, including switches, hubs, routers, bridges, transceivers, etc. A Web-based Configuration user interface (most browsers including Microsoft Windows Explorer, etc.) is provided to view network settings or change IP addresses from the factory default.

Phone connection is automatic upon power-up or when network interruption is restored. Depending on network traffic, multiple pairs of TC1910s can be used to set up individual point-to-point telephone links. An extreme temperature version (-20C to +70C), Model TC1910-T, is available for harsh environments.

The TC1910 provides Toll Quality sound within voice bandwidths from 300Hz to 3.4 Khz. Two types of voice applications are supported: one, connecting to a PBX for outside telephone service; two, setting up a hot link point-to-point connection, e.g. between two work stations, within a LAN. Two-wire FXS (foreign exchange subscriber) is provided on the telephone side with ring down capability and FXO (foreign exchange office) on the PBX side.

Eighteen LEDs for network status, phone status, power and volume are provided to enhance status monitoring and diagnostics. Dry contacts for external alarm and ringer are standard.
The TC1910 is available in standalone (TC1910S) or rackmount (TC1910R) versions. Power is standard 12VDC with optional 24VDC or 115/230VAC with an external power cube. Power redundancy is standard. 10Base-T connectors are RJ-45 Female and Phone connectors are RJ11 Female.

TC1910 Specifications    

Audio Bandwidth
300Hz to 3.4Khz
Phone Connector RJ11 Female (2-wire used)
Ring Voltage 80Vrms at 20Hz
FXO Input Impedance 600 Ω
FXS Output Imped. 600 Ω
Ethernet (10Base-T) RJ45 Female
Baud Rate 10Mbps
Visual Indicators
System Status Alarm, PWR A, PWR B, VccA, VccB
Telephone Signal Status Tx and Rx volume, Off-hook, FXO, FXS, Ring, Hot Link
Ethernet Signal Status Sync, Link Status, Activity, DHCP, Master/Slave
Dry Contact Normal OPEN
Standard 12VDC @ 600mA
Optional 24VDC or 115/230VAC (with external power cube)
Operating 0 to 50C
High Temp. (Optional) -20 to 70C
Storage -40 to 90C
Humidity 95% non-condensing
Physical (Standalone/Wall Mount Unit)
Height (3.53 cm) 1.4"
Width (18.14 cm) 7.1"
Depth (24.89 cm) 9.8"
Weight (835 gm) 1.85 lbs

For US/Canada.  Value varies depending on country.

Typical Application (Application Questions)

The TC1910 is intended to provide flexible point-to-point telephone service via Ethernet Networks. It is often used by maintenance or service personnel in Campus, Traffic Control, or Utility Substation Networks. Typical applications follow:



Ethernet, Scada, ITS, Security, Teleconferencing ,Token Ring, ATM.