Clear-Com HX System Frames - Manual (Page 29)

4.5.3 Single-Pair Digital
Single-pair digital connections are performed using CAT-5 cable for AES-6-CX interfaces.
Pair 1 transmits and receives multiplexed digital and analog between the matrix and the panel.
Tip: Check that the Select switch on the panel’s rear panel is in the correct position for the
intended use.
Figure 6: Connecting the matrix to a digital panel (Single-Pair digital)
4.5.4 Connections using General-Purpose Outputs
The male 25-pin D-type socket labeled GP OUT allows the Eclipse HX-PiCo matrix to be
connected to eight general purpose outputs (GPOs). General-purpose outputs are single-pole
double-throw relays with contact ratings of 30 VDC (volts direct current) at 1 Ampere.
A general purpose output or relay is a switch that is controlled remotely. The relay is
programmed in the EHX software to close a contact whenever an intercom panel’s key is
pressed. When the contact is closed, it completes an electronic circuit’s signal path so that a
remote device, such as a light, is powered.
A GPO can be programmed to mute a speaker, to turn on an applause light, to turn on a door
lock, or to perform a variety of other functions. For example, to get the attention of a panel
operator working in a high-noise environment such as a control booth a relay can be
programmed to switch on a light at the panel each time the panel receives an incoming call to
ensure that the call will not be missed.
Each general-purpose output has a relay inside the Eclipse HX-PiCo matrix. When a general-
purpose output is inactive, the associated common pin on the GP OUT connector will be
29 Eclipse HX-PiCo User Guide