
35
Using the S Software
Description, Specifications, SS Software, and Operation Manual
Federal Signal
www.fedsig.com
Relay Functions
The following shows the Relay Function group box of the General Configuration tab. This
is where you select the functions of the three relays.
Field
Description
Relay #1,
#2, or #3
Click one of the following:
• None—The relay does not respond to any of these conditions. Use for
Activation Codes.
• WatchDogPoll—Relay is usually closed and opens when there has been
no poll request to this unit in 30 minutes.
• PTT—Relay is closed during any transmissions.
• CD—Relay closes when carrier detects is present or if selected, VOX is
active.
• RTU Fault—Activates when a RTU siren site reports a fault.