P84557
D
Sheet 9 of 14
Instructions for Connecting to an Audio Booster Panel
NOTE:
The SP4-RMX cannot be connected to an Audio Amplifier (SPB) with a PC board revision “K” or lower. The SP4-RMX can
only be connected to SPB PC board with revisions “N” or higher.
One SP4-RMX can be used with each Audio Booster panel. When one of the remote microphones is used, it will only broadcast on
the circuit(s) connected to the audio booster audio output.
The SP4-RMX is connected to the Audio Booster when the SPB is in the 4-wire mode.
The 25V or 70V audio output of the SP40/2 is wired to the AUX IN on the SP4-RMX. The AUD OUT of the SP4-RMX is then wired
to the AUDIO IN on the SPB.
Set switches and jumpers on the SP4-RMX as follows
•
Set SW1 to the SPB position.
•
Set Jumper J1 to 25V or 70V matching the voltage setting of the SP40/2 audio output..
•
Set switches on switch block SW3 to the ON position for each SPRM connected. Insure the corresponding switch is OFF for any
SPRM inputs not used.
•
Set switch S1 on SW2 to the desired position according to Table 1. Set S2 to ON. Switch S3 to the ON position.
Set switches and jumpers on the SPB as follows:
•
Set SW1 to the CC (contact closure) position.
•
Remove jumper W1 to enable supervision of the CC input wiring.
•
Move jumper J2 to the 1V position.
Field Wiring Checkout:
Refer to NFPA for guidelines on testing signaling system wiring.
CAUTION:
Do not connect input voltage to any equipment until the field wiring has been inspected, tested and approved.
1.
Verify that the field wiring is in full agreement with this manual and with the detailed wiring layout prepared for this installation.
Ensure that no unwanted voltages are present on circuit conductors and ground.
2.
Test all ungrounded connectors for electrical isolation from ground.
3.
Test all wires that are not intentionally connected for electrical isolation from each other.
4.
Measure and record the resistance of each circuit pair (this can be done by temporarily short circuiting one end of the circuit).
