CTI Products OTAL On-the Air Terminal Board and Lamp - Manual (Page 8)

CTI Products, Inc. OTAL Terminal Board User Guide
W
IRING
J1 Power Connector
Power can be applied through the DC Power Connector J1:
Pin Function
Center + Supply In (typically 24VDC)
(Paralleled with TB1-1)
Barrel - Supply In (Typically Ground)
(Paralleled with TB1-1)
Table 1 – J1 Power Connector
TB1
Terminal Board TB1 is for the field wiring.
Pin Function
1 + Supply In (Typically +24 VCDC)
(Paralleled with J1-Center)
2 - Supply In (Typically Ground)
(Paralleled with J1-Center)
3 OTAL Lamp +
4 OTAL Lamp -
5 + Input from OTAL Relay Closure
(from OTAL Driver Assembly)
6 - Input from OTAL Relay Closure
(from OTAL Driver Assembly)
Table 2 – TB1 Connections
Power may be furnished through either J1 or TB1.
LED
S
Two LEDs are present on the board to help in troubleshooting. The function is marked on the board. When the
cover is installed the LEDs may be seen when looking straight on.
LED Function
Power LED
(Left) On when power is present
OTAL ON when the OTAL Relay Closure is present.
(Power must also be present)
Terminal Board 8