Model TC8610

4 Channel Serial-to-T1 orE1
The TC8610 is a 4 Channel Serial-over-T1/E1 multiplexer with built-in power redundancy.
It supports data rates up to 38.4 Kbps

Product or Application Questions (click here)

4ch RS-232 or 4ch RS-422/RS-485
Two or Four Wire RS-485
Very Low Latency - 85s
Individually Isolated Ground for each Serial Port
Supports 120Ω & 75Ω E1
Built-in Power Redundancy
Rack Mount or Stand Alone


The TC8610 is available in four configurations:

  • 4-Channel Async RS-232 with Control
  • 4-Channel Sync RS-232
  • 4-Channel Async RS-422 / RS-485
  • Contact factory for other combinations

Interfaces include RS-232, RS-422, and RS-485. Synchronous versions must be RS-232.

Diagnostics are extensive and include DIP switches for Local & Remote Loopback and other application configuration switches. Each unit also provides multiple LEDs for Alarm, Power, Vcc, T1/E1 Status, and Tx & Rx LEDs for each channel.

The built-in sync mechanism verifies both device and T1/E1 link operation. No other test equipment is required for link and device verification.

The TC8610 is compatible with standard 100Ω T1 for copper line lengths up to 6000ft and up to 2.5km for 75Ω / 120Ω E1 (copper line length is the distance between the TC8610 and the T1/E1 cross-connect). T1/E1 uses RJ45 connector and the serial channels use RJ-11. Optional BNC adapter cable is available for 75 Ohm E1. Power is 12VDC standard or optional 24VDC, -48VDC, 125VDC, or 115/230VAC with an external power cube. Optionally, a high temperature version (-20C to 70C) and extreme temperature version (-40C to 80C) are also available.


TC8610 Specifications
RS-232, RS-422 or RS-485   Connector RJ11
Data Rate up to 38.4Kbps
T1 or E1 Connector RJ45F
Data Rate 1.544 Mbps or 2.048 Mbps
Dry Contact Normal Open
Visual Indicators
System Status PWR A, PWR B, VccA, VccB, Alarm, Link, Sync, Activity
Electrical Signal Status TX, RX,
Standard 12VDC @ 300mA
Optional 24VDC, -48VDC, 125VDC, or 115/230VAC (with external power cube)
Operating -100C to 500C
Hi-Temp (optional) -20 to 70C
Storage -400C to 900C
Humidity 95% non-condensing
Physical (Standalone/Wall Mount Unit)
Height    (3.53 cm) 1.4"
Width (18.14 cm) 7.1"
Depth (24.89cm) 9.8"
Weight (907 gm) 2 lbs

 Typical Application (Application Questions)

The TC8610 offers an inexpensive, plug and play method for connecting up to four serial devices over existing T1/E1 links. Popular applications include:

  • Transporting asynchronous RS232/RS422
  • Transporting SCADA communications
  • Protocol-transparent
  • Supports SEL Mirrored Bits**
  • Connecting two Power Utility teleprotection relays

The TC8610 can also convert the RS-232 Async to RS-422/RS-485 signals running from the local side to the remote side or vice-versa.

**NOTE - Mirrored Bits is a registered trademark of Schweitzer Engineering Laboratories Inc.

SONET, Security, fiber Optic Modem, Multiplexer, Converter, Video, SONET, LAN, Ethernet, Scada, ITS, Security, Teleconferencing