Mircom TX3 Series Installation Manual page 76

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To access the panel, remove the two screws and swing open the Touch Screen
panel.
Power
Terminals
(not polarity sensitive)
Microphone and
Speaker Connections
from Telephone
Access Controller
Microphone
Connection
from Touch
Screen
Power Supply Board
3.3.3 Grounding
Grounding reduces the risk of electrical shock by providing an alternate escape
route for the electrical current. Touch Screen is equipped with a 16 gauge
electrical wire attached to the panel chassis ground post as shown in Figure 65.
To ground the Touch Screen attach one end of the supplied cable to a suitable
grounding wire and connect it to the site ground.
76 TX3 Touch Screen Installation Manual
PC Sub Compact Board
Power Supply Board
Audio Mixer Board
PC Sub Compact Board
Ethernet
USB
Audio Mixer Board
On/Off
Speaker
Connections
Figure 65. Controller board panel for TX3-TOUCH-K15-A,
TX3-TOUCH-F15-A, TX3-TOUCH-S15-A
Touch Screen System and Setup
Telephone Line
Telephone
Access
Controller
Blk Wht
USB
Microphone Postal Lock
and Speaker Input 1
Connections
to Audio Mixer
SW1
On/Off
Chassis
Ground