Ross OpenGear DSS-8224, Руководство пользователя

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30 • Operation DSS-8224 User Guide (v6.0)
7x1 Mode
When the DSS-8224 is configured for 7x1 mode, two four-button panels are connected together with the two 7x1
switches. Note that Panel 1 connects to GPI 1 on both DSS-8224 cards. The upstream switch will have one panel
connected in slave mode and will listen for button presses and changes the outputs accordingly. The downstream
switch will have both panels connected in master mode. When a button press is detected on the panel this connected
to the upstream switch, the downstream switch will change to Input 1 which originates from the upstream switch.
This switch is delayed for approximately 1-2 fields in order to allow the upstream switch time to make the change.
Refer to the section “
7x1 Mode Setup ” on page 6 for setup details.
Multiple Remote Module Operation
Up to three control modules can be connected to a control bus. To avoid bus contention, only 1 module may be
active at a time. Active modules have a red LED on the front of the panel lit up. Non-active modules will continue
to indicate the currently selected Output. Pressing buttons on a non-active module will have no effect on the utility
switch connected to the module.
To select which module is active, a GPI must short the module GPI. On the back of each module is a three-pin
connector for the GPI. Shorting pins 1 and 2 together, or bringing pin 1 to a low logic level, will enable the module.
In installations where two modules are connected to a control bus, the RCS-8120 may be connected to the two
remote modules to select which module is active. The RCS-8120 has two dual push button switches, so one
RCS-8120 can control four RCM-8120 modules.
Figure 6.5 Example of Signal Flow with Multiple Module Operation
GPI Operation
The following sections explain common configurations using GPI Level and GPI Edge controls. When configured
in 2x1 Mode, the DSS-8224 can be controlled by the RCS-8120 Remote Control Module. This module has dual
push-button switches for GPI triggering.
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