Instruction manual

Amplifier Supervision

A supervisory tone plays through the amplifier section during standby for supervision purpose.

Any sensed trouble illuminates D36 “AMP” LED. See Figure 7-1A for the SPB-160 (Page 49)

and Figure 7-1B for the SPB-80/4 (Page50) for LED location.

Ground Fault Supervision

The panel supervises for ground fault conditions on Class B, Style Y field wiring that is not

electrically isolated. The supervised wiring includes contact inputs and audio NAC circuits

outputs. All other wiring is electrically isolated. Removing jumper W6 shall disable ground fault

supervision. If a ground fault condition exists D60 GF LED illuminates. See Figure 7-1A for the

SPB-160 (Page 49) and Figure 7-1B for the SPB-80/4 (Page 50) for LED location.

Section 4-3 - Actions That Initiate Alarms

A 25V or 70.7V input from a voice evacuation panel will initiate the voice output. On the SPB-

80/4, a selection of either a 8-33VDC NAC input or a contact closure connected to the strobe

input will activate the two 24VDC 2A strobe output circuits.