RTS Zeus III, User Manual

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Zeus III Introduction 13
Bosch Security Systems, Inc. Technical Manual F.01U.193.289 Rev. 05
CH A and CH B 2W/Party Line LEDs and Controls
The CH A and CH B 2W/Party Line LEDs and Controls are used to configure dual-channel party line interface. Ports 33
and 34 in the intercom system are designated as the 2-wire party line channels. For more information on party line operation,
see “Party Line Operation” on page 45.
Peak LED Indicator
The Peak LED indicator displays if the party line channel or 2-wire channel is operating within the normal operating levels.
•
When the level is less than -12dBu, the LED is off.
•
When the level is between -12dBu to 1dBu, the LED is green.
•
When the level is greater than 1dBu, the LED is red.
2-Wire Mode Rotary Switch
The 2-Wire Mode Rotary Switch is used to select the 2-wire mode you want to configure your party line channel.
Available options are:
OFF - No modes are active
1 - RTS Channel 1 mode
2 - RTS Channel 2 mode
Audiocom (Balanced) - Audiocom Mode
ClearCom (Unbalanced) - ClearCom mode. Unbalanced with DC call
To change the 2-Wire Mode , do the following:
1.
Using a flathead screwdriver, insert the head into the rotary switch slot.
2.
Turn the flathead screwdriver until the arrow is pointing to the mode you desire.
The corresponding green LED (to the right) lights, designating your selection.
2-Wire Mode LED Indicators
The 2-Wire Mode LED indicators signal which 2-wire mode is currently active. When a mode is active, the green LED next
to it lights.
FIGURE 3.
CH A and CH B 2W/Party Line LEDs and Controls