Preparation (Modules)
18
Setting the Operating Voltage for the NTPM
Caution: Electrostatic charges can destroy sensitive
components.
씮
Only a skilled electrician may open the casing and
perform installation work within an open casing.
씮
Divert electrostatic charges from yourself before
touching the circuit boards with your hands or any
tools. To do this, touch a metal object, preferably
earthed, e. g. the earthing terminal of the PBX or
a computer housing.
Requirements
– Previous system planning
– Turning on the operating voltage: The NTPM is not
powered by its own power supply plug .
– Turning off the operating voltage: The NTPM is pow-
ered by its own power supply plug .
Steps to Take
1.
Switch on: Push both buttons on the DIP switch to be
switched to the “on” position. See
Switching off: Push both buttons on the DIP switch to
be switched to the “off” position. See
COMmander 4S
0
Module Overview (Rev. 2)
Fig. 2: Switch setting on the COMmander S
2M
module
Enabled
Disabled
Fig. 3: COMmander 4S
0
module (rev. 2)
햲
Terminal clamps (removable) for connecting to the S
0
ports 1-4 (see circuit board label)
햳
RJ-45 socket for connecting to the S
0
port 1 including
LEDs for displaying the status of S
0
ports 1 and 2
햴
RJ-45 socket for connecting to the S
0
port 3 including
LEDs for displaying the status of S
0
ports 3 and 4
햵
A connector for switching the operating mode on the
S
0
port 1
햶
A connector for switching the operating mode on the
S
0
port 2
햷
A connector for switching the operating mode on the
S
0
port 3
햸
A connector for switching the operating mode on the
S
0
port 4
햹
DIP switches for terminators on the S
0
port 1
햺
DIP switches for terminators on the S
0
port 2
햻
DIP switches for terminators on the S
0
port 3
햽
DIP switches for terminators on the S
0
port 4
햾
A connector for attachment on the base circuit board
햿
A connector for connecting to the front panel of 19"
casing variants
햾
햹
햺
햻
햽
햲
햶
햷
햸
햲
햲
햲
햳
햴
햵
햿
Summary of Contents for COMmander Basic.2
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