User's Guide

Preliminary Draft 13
Installation
Component parts
Globalstar electronic module
The Globalstar electronic module (GEM/GCK-1a) interfaces to the vehicle’s
power and houses the electronic circuit for the car kit. It provides and
controls the supply voltages for the accessories and the charge current for
the phone.
Note
Do not install the GEM inside the engine compartment of the
vehicle.
Hands-Free Car Kit cradle
The Hands-Free Car Kit cradle (GCK-2a) securely holds the Globalstar
portable phone.
Hands-Free speaker
The Hands-Free speaker (GCK-3) connects to the GEM (GCK-1a) speaker
jack. It should be mounted at least 20 inches (50 cm) away from the Hands-
Free microphone and should not be pointed towards the microphone.
Hands-Free microphone
The Hands-Free microphone (GCK-6), a unidirectional mouse-style
microphone, connects to the GEM (GCK-1a) microphone jack. It can be
installed on the A-pillar with velcro or tape or on the driver’s sun visor
using double-sided tape.
Car interface cable
The car interface cable (GCK-7) connects to the GEM (GCK-1a) via the 4-
pin connector.
■ The fused red lead connects to the positive terminal of the vehicle’s
battery.
■ The black lead ground (GND) connects to a clean, unpainted metallic
part of the vehicle.
■ The fused green lead (STEREO MUTE) is for car stereo mute.
■ The fused yellow lead (IGNS) is for ignition sense.
GCK-11a
ODU pigtail to Cradle
GCK-12a
Cradle pigtail to ODU
GCK-13
Cradle pigtail to cellular antenna
GCK-14
Cradle connector to GEM
Cellular antenna (not included)