Signalling protocol simulator & analyser (E1/T1 links)

The IMUX family of network interface boards has been designed to allow the simple connection of
standard multiplexer voice channels to all telephone and PBX interfaces in common use.

Features:  
- Signalling protocols: DC5A - DC5A + Wink start, DC5D.
- Signalling frequencies (if applicable): 2280Hz/2600Hz.
- Status indicated by led's.
- Standalone cabinet or 5U-19" rack (for 10 boards).
- Power : 42 to 56 VDC.
- Gain Range : -20 to +10dB on each transmission path.