Nt4X25Af /Ag /Ah /Ak - Rear View - Northern Telecom DMS-100 Series Installation And Maintenance Manual

0
0
0 Teladapt connector
0 for telephone
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 in-line
0 power
0 supply
0
0
0
0
0 ///
0
0 Figure 3.6
0 Each desktop DU has LEDs (light emitting
0 the status
0 built-in speaker lets you hear call progress tones such
0 back, busy tones and recorded announcements.
0 front panel
0 release, auto dial and speed call.
0 There are two banks of DIP switches located on the
0 inside the DU (SW1 and SW2) (see Figure 4.1 on page 4-3 and
0 ure 4.2 on page 4-4).
0 for a switched/slave configuration.
0 ground to be connected or isolated from ac ground.
0 is factory-set with signal ground isolated from ac
0 you need to reset these switches, see Setting the Configuration
0 Switches on page 4-1.
0
V V
power cord

NT4X25AF /AG /AH /AK - Rear View

of tests, power, ring again and other operations.
of the unit control such functions as volume, call
These DIP switches are set at the factory
Teladapt connector
for data line
/ .......... \
/ ............ \
RS-232C or V.35
interface for
DTE
diodes)
Control keys on the
Switch SW2-1
297-2121-226
VINTAGE 05.01
that indicate
A
as ring
circuit card
Fig-
allows signal
This switch
ground. If
3-9