User guide
GSM500.GC
Issue 1.00
Page 6
Overview
GSM500.GC.R open case
A
SMA connector for external antenna
B
protected SIM card slot
C
Status LEDs: GSM network signal level (green), device status (red), line and data inter-
face status (white), power supply status (blue)
F
RJ11 plug for the connection of an analogue telephone device or PBX trunk (FXS)
G
Plug for the external 230 VAC power supply unit
H
Screw connector for of an analogue telephone device or PBX trunk (in parallel to the
RJ11 plug)
I
Screw connector for external 12 VDC power (as alternative to the power supply unit)
L
Contact output relay (only GSM500.GC.R)
M
Connector for the NiMH battery pack
