Clear-Com HX System Frames - Manual (Page 48)

6.8 E & M signalling with an E-QUE E1 / T1 interface card
When you enable E & M signaling on an E1 / T1 direct E-QUE card, you associate a GPI
and a GPO in EHX with each configured port.
You can use the:
• GPI (General Purpose Input) to trigger an action / control on an incoming
signalization.
• GPO (General Purpose Output) to trigger an outgoing signalization from a control.
6.8.1 Example: Ship-to-shore satellite system
Figure 15: Ship-to-Shore E & M signaling
Shore
Ship
On-shore
communications
system
System frame
(matrix)
FOR-22 module
Radio
= T1
= 4W
= Incoming E & M signal
= Outgoing E & M signal
Satellite
Router (Voice)
48 Eclipse HX Matrix Frame Installation Guide