Specifications

M GD-100 M anual

24 6109-9000 Rev 3

IMPORTANT: Ensure that connections 1 to 4 on the sensor

connect to their corresponding numbers on the termi nal block

in the mai n control unit, otherwise it could c ause damage to the

MGD-100.

NOT E: You may use different cables and longer distances

provided t he corresponding resistance shown above is not

exceeded.

4.2. External Audible Alarm and DC Output

NOT E: This section applies to the external audible alarm and

the 12 VDC output (4-6 channel systems only).

Step Wiring the External Audible Alarm and DC Output

To install the audible alarm, connect positive lead to CN9

terminal (for one-alarm models) or CN11 terminal (for two-

alarm models ) marked +12V.

2 Connect the negative to the center terminal marked ‘BUZZ’.

The 12 VDC/ 100 mA output is obtained via CN9/ CN11

terminals ‘+12V’ and ‘0V’. This output may be wired via the

relays to obtain a switching 12 VDC output to drive an

external relay or solenoid.

NOT E: If both the buzzer and 12V DC output are

connected correctly,

they should not exceed

250 mA in total.

Connect terminal ‘+12V’ on CN9/CN11 to the ‘COM’ terminal

of the relay and the device to be switched to eit her the N/O or

N/C termi nal (depending on whether a 12V out put is required

during an alarm condition or while the system is on standby).

The return from the device is connected to Ze ro on

CN9/CN11.