MDS 4710B, Инструкция по установке и эксплуатации

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MDS 05-3316A01, Rev. E MDS 4710B/9710B I/O Guide I-5
interface connection for (Pin 21)
12
signal level versus DC voltage
14
RTS (Request-to-Send Input), interface connection for (Pin 4)
11
RTU
command
28
RTU, resetting remotely
14
RUS (Receiver Unsquelched Sensor), interface connection for (Pin
10)
11
RX command
28
RXD
LED
13
LED interface connection for (Pin 3)
11
RXLEVEL command
28
S
Safety. See Cautions
SCD command
29
SER command
29
Serial number, display radio (SER command)
29
SHOW command
29
Signal strength. See RSSI
Simplex
communications in point-to-point systems
2
single-frequency operation
3
special case of switched carrier operation
3
Sleep Mode
7
example implementation
7
Software
determining level (SREV command)
29
installing upgrades
37
Specifications
34–35
data interface
35
operating environment
35
primary power
35
receiver
35
transmitter
34
UK MPT 1411
1
Squelch tail eliminator
disable (DSTE command)
24
display state (STE command)
30
enable (ESTE command)
24
SREV command
29
STAT command
29
Status, radio (STAT command)
29
STE command
30
Summaries/charts
Celsius to Fahrenheit conversion
31
command equivalents for older transceivers
22
data interface pin functions
11
dBm-watts-volts conversion chart
39
event codes
33
feedline loss by cable length and type
9
HHT operational settings
17
LED status indicators
13
local maintenance commands
21
modem type versus speed
10
operating parameter commands
19
relationship between RSSI and DC voltage
14
specifications
34–35
transceiver accessories
4
SWE command
30
T
Technical reference
34–39
data interface specifications
35
helical filter adjustment
35
operating environment specifications
35
primary power specifications
35
receiver specifications
35
transceiver specifications
34
transmitter specifications
34
TEMP command
30
Temperature, display transceiver internal (TEMP command)
30
Testing. See Bench testing
TEXT TOO LONG error message
18
Time-out period, display (TOT command)
31
Timer setting, clear-to-send (CTS command)
23
Timer status, display (TOT command)
31
TOT command
31
Transceiver
commands
18
mounting
8
power input
8
programming
15
specifications
34
Transmit Audio Input, interface connection for (Pin 9)
11
Transmitter
activate (KEY command)
26
power. See PWR command
27
set audio level (TXLEVEL command)
31
specifications
34
Troubleshooting
31–34
bench testing set-up
38
checking for alarms using STAT command
32
event codes
32, 33
LED status indicators
32
major vs. minor alarms
33
TX command
31
TXD
LED
13
LED, interface connection for (Pin 2)
11
TXLEVEL command
31
U
UNKNOWN COMMAND error message
18
V
Voltages, display DC input/output (SHOW command)
29