PATLITE FV-127JP - Manual (Page 14)

- 14 -
5-2-5 BUSY Output Terminal Wiring
The “BUSY” output is sent while a message is in playback. Any external devices, such as a signal tower or rotating light,
can be connected and operate during a message playback.
(An external power source is necessary for devices which have no internal power source for operation.)
The maximum voltage for connecting to the BUSY output is DC 40V.
The maximum current for connecting to the BUSY output is DC 500mA.
Connection Examples:
When connecting our rotating lamps, signal towers, etc., please use the following examples.
External Device Connection
with Voltage Source
External Device Connection
with Signal Control
Incorrect Connection Examples:
The following illustrations show examples of how not to connect the BUSY output terminals:
Power inputs outside DC40V or AC supplies connected will cause damage to internal circuitry.
Currents above 500mA will cause damage to internal circuitry.
Incorrect connections like the two examples above will cause damage to internal circuitry.
If inrush current exceeds 5A, damage to internal circuitry will occur.
Incorrect Power
Connection 1
Incorrect Connection 2
(Direct Power Connection)
Incorrect Connection 3
(No Power Connection)
L L
BUSY- BUSY+ BUSY- BUSY+
+ -
BUSY- BUSY+
+ -
BUSY −
BUSY ＋
FV-127JP
Circuit Diagram
L L
BUSY- BUSY+ BUSY- BUSY+
- +
%CWVKQP
Negative Power
Source
Positive Power
Source
Negative Power Source
Positive Power Source
External Power
Max. DC 40V
External Power with
Internal Power Source
Max. DC 40V
Signal Wire Side
Common Side
Max. 500mA
Max. 500mA