Figure 3-8 Audio And Strobe Output Connections (Spb-80/4); Figure 3-9 Audio Output Connections (Spb-160) - Wheelock SAFEPATH4 Application, Installation, Operation, And Maintenance Manual

Audio and Strobe Output Circuit Connections
NOTE: A UL Listed 10K Ohm EOLR shall be installed on both AUD1 and AUD2 outputs for
supervision whether they are used or not. If the audio circuit is used, the UL Listed 10K Ohm
EOLR shall be place on the last audio appliance on the circuit. Failure to do so will cause an
open condition causing the TROUBLE LED D24 to turn on as well as the respective OPEN LED
to light.
NOTE: AUD1 and AUD2 are two separate 80 watt, Class B, power limited audio output circuits.
Do not wire AUD1 and AUD2 together.
NOTE: STB1 and STB2 are two separate 2 Amp, Class B, power limited strobe NAC circuits. Do
not wire STB1 and STB2 together.
Figure 3-8 shows the audio and strobe output connections as they are on the SPB-80/4. Notice
that there is two strobe outputs.
Audio and Strobe Output Connections (SPB-80/4)
1. Connect Audio Appliance circuit to Audio Output (AUD OUT) connection(s). Figure 3-8 and
Figure 3-9 are enlarged diagrams of the referred areas. The Audio Output(s) is supervised.
A UL Listed 10K Ohm, EOLR is required at the end of the circuit for proper supervision.
2. For the SBP-80/4, select the proper output voltage (25V or 70V) using the Audio Output
Select Jumper J1B and J3. See Figure 3-19B (Page 36) for location.
3. For the SPB-160, select the proper output voltage (25V or 70V). Use Jumpers J1A and J3
for AUD1 and Jumpers J4 and J5 for AUD2. See Figure 3-19A (Page 36) for location.
4. Connect Strobe Appliance circuit to STB Outputs (STB1 OUT, STB2 OUT) connections.
Figure 3-8 is an enlarged diagrams of the referred area. The strobe outputs are supervised.
UL Listed 10K Ohm, EOLR is required at the end of the circuit for proper supervision.
5. Select the proper strobe-operating mode (Wheelock Sync, Wheelock Pass through Sync, or
24VDC constant using the Strobe Sync Select Jumper W5. See Figure 3-19B (Page 36) for
location.
NOTE: Input and Output audio voltages shall be matched. If a 25V is selected as the input
voltage, then 25V shall be selected as the output voltage.
TB5
AUD1 OUT
STB2 OUT
STB1 OUT
Figure 3-8
TB5
AUD2 OUT
AUD1 OUT
Figure 3-9
Audio Output Connections (SPB-160)
Audio and Strobe Out
Audio Out
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