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DESCRIPTION
Gemini 7157
Gemini 7157 is a compact, alarm with sensors and siren. Studied for vehicles equipped with
original transmitter and 12V battery –negative to earth.
FUNCTIONS
- Alarm arming/disarming through the controls of the motors and the switches of the doors locks.
- Blinker and electronic siren.
- Perimetrical protection and volumetric protection only for Kit 7157US and Kit 7157HF).
- Positive and negative control for vehicles equipped with “Pack-comfort” system.
- Engine immobilisation.
- Negative control external l additional siren.
- Automatic arming.
- Absorption sensor.
- LED’s memory.
GEMINI 7156. As 7157 not self-powered and without engine immobilisation.
The alarm system is supplied with two mechanical keys for the emergency release.
INSTALLATION INSTRUCTIONS (for the installer).
- The alarm wiring harness must be positioned away from the vehicle high voltage wires in order to
avoid interference, which could generate wrong working of the system.
- On vehicles with catalytic converter, the engine immobilisation must be carried out on the fuel
pump.
- For systems with volumetric sensors (art. 7157US), the transducers must be positioned at the top
of each windscreen pillar, far from the ventilation or the conditioning air outputs.
- Connect the positive of the alarm system to the battery positive terminal; connect the negative of the
alarm system to the battery negative terminal.
- The unit memorises the polarity of the arming and disarming controls from the vehicle 10 seconds
after the alarm feeding. During these 10 seconds the Led lights fix. In this condition it is possible to
carry out only the “Blinker” exclusion.
- IMPORTANT: to obtain the correct working of the automatic arming and perimetrical
protection functions, it is COMPULSORY to connect the GREEN-BROWN wire to the door
switches.
CONNECTION TO THE RADIO RECEIVER
For vehicles with original positive control receiver, follow the fitting diagram A.
For vehicles with codified receiver with a single control switch, negative to rest, follow the fitting
diagram C.
For vehicles with codified receiver with a double control switch, negative to rest, follow the fitting
diagram D.
For vehicles with codified receiver with button or control switch free to rest, follow the fitting
diagram E.
For vehicles with codified receiver and central door locking closure control supplied
with alarm connection, follow the fitting diagram F.
DIP SWITCHES PROGRAMMING TABLE
A
TTENTION
:
SELECT THE DIP SWITCHES BEFORE TURNING THE MECHANICAL KEY TO
ON.
1 ON Current absorption sensor ON
1 OFF Current absorption sensor OFF
2 ON Passive arming ON
2 OFF Passive arming OFF
3 ON Arming/disarming acoustic signalling OFF
3 OFF Arming/disarming acoustic signalling ON
4 ON Positive polarity for control on the WHITE-L.BLUE wire
4 OFF Negative polarity for control on the WHITE-L.BLUE wire
5 ON Connection of the BROWN-RED connector to the positive alarm
armed activated.
5 OFF Connection of the BROWN-RED connector to the positive alarm
excluded.
6 ON NEGATIVE polarity arming/disarming controls.
6 OFF POSITIVE polarity arming/disarming controls.
7 ON AUDI modality ON
7 OFF AUDI modality OFF
8 ON MERCEDES modality ON
8 OFF MERCEDES modality OFF
ACCORDING TO THE RULES POSITION THE DIP-SWITCH N.1 TO OFF.
WIRING CONNECTIONS
(Disconnect the negative terminal of the battery and only re-connect after the installation is complete)
FUNCTIONS WIRE COLOURS
Earth
Ö
ÖÖ
Ö
BLACK initialled M
Battery positive terminal
Ö
ÖÖ
Ö
BLACK initialled R
Engine immobilisation (for 7157)
Ö
ÖÖ
Ö
2x GREY initialled H
Ignition live
Ö
ÖÖ
Ö
YELLOW
Door pin switch
Ö
ÖÖ
Ö
GREEN-BROWN
Boot/bonnet pin switch
Ö
ÖÖ
Ö
GREEN
Positive alarm armed
Ö
ÖÖ
Ö
PINK
Sensors inlet
Ö
ÖÖ
Ö
GREEN-BLACK
Negative control additional siren
Ö
ÖÖ
Ö
YELLOW-BLACK
Positive Comfort control
Ö
ÖÖ
Ö
RED-BLACK
Negative Comfort control
Ö
ÖÖ
Ö
WHITE-BLACK
Direction indicator lights
Ö
ÖÖ
Ö
2 x ORANGE
Arming control
Ö
ÖÖ
Ö
YELLOW-BLUE
Disarming control
Ö
ÖÖ
Ö
GREEN-BLUE
Door lock switch signal
Ö
ÖÖ
Ö
WHITE-L. BLUE
Door lock switch signal
Ö
ÖÖ
Ö
YELLOW-RED
Switch signal with WHITE-L. BLUE wire to earth
Ö
ÖÖ
Ö
BROWN-RED
The wiring harness is supplied with two connectors; connect the 4-pin connectors to the ultrasonic or super
high frequency module and the 2-pin connector to the LED.
2


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