Omega Vehicle Security OMP-MODL manual LOW Range High Range

2... OMP-MODL System Base

To change the setting, access must be gained to the jumper on the top of the MLCPU-1 module (Figure 2... -5). Per the assembly / disassembly instructions in Chapter 3, open the logger to gain access to the top of the MLCPU-1. The Hi/Lo jumper is installed on two pins of a 3 pin header. To program a new range, remove and reinstall the jumper on the desired pair of pins.

EPROM

CPU

LOW RANGE HIGH RANGE

ML005

Figure 2... -5: MLCPU-1 External Power Voltage Range Jumper

OVERVOLTAGE PROTECTION:

The MLCPU-1 incorporates circuitry to protect the logger from over-voltage, transient voltage spikes, and over-current conditions encountered on the External Power Terminals. In the event that extended out of spec voltages are impressed on the External Power terminals, protective circuitry will activate and blow the 1.5A input fuse. Replacement fuses (P/N: Littelfuse 27301.5) are available from Omega Engineering Incorporated or electronic distributors.

BATTERY CONNECTION PIGTAIL:

The MLCPU-1 is equipped with a pigtail and connector for connection to the ML-BATT battery pack module. This connector dangles from the bottom side of the MLCPU-1 circuit board. If batteries are not utilized, this pigtail should be left unconnected. Details on connection and use are provided in the section on the ML-BATT battery module in Chapter 3.

Relay R1 (Terminals 3 & 4)

Wiring connections for Output Relay 1. The relay is a normally open device with contacts rated for 500 ma MAX at 32VDC MAX . Operation is dependent on logic associated with the Relay Alarm #1 icon within the Program Net executing in the logger.

Using the OMP-MODL 2-9