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Codan-radio MT-4E Paging Manual de usuario Pagina 36

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USER GUIDE | MT-4E PAGING SYSTEMS
Chapter 3: MT-4E Paging System ComponentsPage 28
System Regulator Testing
The System Regulator module is designed with a convenient and easy test point built in to the front
panel. This test point allows a technician access to the DC supply and regulated voltages. Simply
connect a standard Digital Volt Meter (DVM) to the METER jacks on the front panel of the System
Regulator as shown in Figure 3-20. Turn the rotary switch to the desired position to measure the supply
voltage, regulated voltage or audio output as shown in Table 3-1. Note that the RSSI requires a carrier
and the audio output requires an audio tone injected into the receiver.
Figure 3-20: System Regulator Testing
Table 3-1: System Regulator Rotary Switch Functions
Position Function Parameter
1 Supply Voltage +10 Vdc to +17 Vdc (+13.8 Vdc nominal)
2 +9.5 Volts Regulated +9.5 Vdc (± 0.1 Vdc)
3 Rx A Audio Receiver A Audio (NOT Rx Balanced Output)
4 Rx A Carrier Strength 0 Vdc to +5.0 Vdc based on received signal strength
(0 Vdc is a low RF signal level, +5.0 Vdc is high)
5 Rx B Audio Receiver B Audio (NOT Rx Balanced Output)
6 Rx B Carrier Strength 0 Vdc to +5.0 Vdc based on received signal strength
(0 Vdc is a low RF signal level, +5.0 Vdc is high)
TRANSMITTER
CNTL
BUS
MIC RF OUT
AD
ANALOG
DIGITAL
NORM
OFF
KEY TX
MICMODE
REF
IN
USB
FREQUENCY (MHz)
MADE IN CANADA
MODEL # CODE
RECEIVER
NORM
SQ. DISABLE
OFF
CNTL
BUS
AD
RF NI
REF
IN
USB
FREQUENCY (MHz)
MADE IN CANADA
MODEL # CODE
VOL
SYSTEM REGULATOR
METER
+
-
MADE IN CANADA
ON
OFF
SPKR
INT
EXT
EXT
SPKR
OFF
POWER
ON
2
1
5
4
3
67
8
11
10
9
FUNCTION
12
MIN MAXHOLD
REL
%
ms
Hz
RANGE
dB
dB
ac+dc
ac+dc
ac+dc
ac+dc
F
nS
mA
mA
A
mV
V
mV
V
OFF
C
A
A
A
A
mA
COM
V
TEMPERATURE
A
MIN MAXHOLD
REL
%
ms
Hz
RANGE
dB
dB
ac+dc
ac+dc
ac+dc
ac+dc
F
nS
mA
mA
A
mV
V
mV
V
OFF
C
A
A
A
A
mA
COM
V
TEMPERATURE
A
AutoHOLD
LOGGING
SAVECANCEL
FAST MN MX
SETUP
YES
NO
DIGITAL MULTIMETER
CLEAR MEM
VIEW
DC
SET
DEV
4 LEVEL
SETUP
MODE
DATA
MODE
A D
2 LEVEL
SET
MOD
NORM
REF IN
REF OUT
PAGING
MODULATOR
DATA
INT
FREQ
REF
EXT
DATA / CTRL
PORT
PULL DOWN
TO REMOVE
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