2... OMP-MODL System Base

Terminal Strip Connections

The MLCPU-1 is provided with a terminal strip connector for connection of power, input and output wiring (Figure 2... -4). The terminal strip connector can be unplugged from the module allowing for quick disconnect and reconnection of wiring. Connection details follow:

EXTERNAL POWER

RELAY R1

RELAY R2

RELAY R1

STATUS

FEEDBACK

1

2

3

4

5

6

7

8

9

RELAY R2

+5V

TTL ALARM OUTPUT

GND

STOP

POWER

SERIAL PORT

RESET

ENABLE

ML004

Figure 2... -4: MLCPU-1 Terminal Strip Connections (end view)

External Power (Terminals 1 & 2)

An external power source may be used to power the OMP-MODL . If an external power supply is connected to the OMP-MODL and its supply voltage is greater than approximately 10.7 VDC, the OMP- MODL will operate from the external supply and the batteries will not be used. In the event that the external power fails or drops below 10.7V, the OMP-MODL will automatically transfer to battery power and continue operation.

The External Power Supply terminals will accept either AC or DC input and polarity is not relevant.

EXTERNAL SUPPLY VOLTAGE RANGE:

A field selectable dual input range feature allows the logger to accomodate a very wide range of input voltage applied to the External terminals. A jumper provided on the MLCPU-1 programs the input range for HI or LO range:

LO Range: (8 to 24 Vdc / 10 to 23 Vac) (factory default)

HI Range: (11 to 32 Vdc / 12 to 23 Vac)

2-8

Using the OMP-MODL

Page 17
Image 17
Omega Vehicle Security OMP-MODL manual MLCPU-1 Terminal Strip Connections end view