103
Wiring to the Alarm Circuit
Wiring to the Alarm Circuit
The alarm circuitry of the CCE can be used to give an external indication of both external
and internal events. Alarm sources include an external contact monitor, a monitor of
circuit card “ERROR” indicators, and a low-voltage monitor for the Model 4048 Power
Supply. When an alarm condition is detected, a relay contact closes and may activate a
lamp and/or beeper to give visual and/or audible indication to operators and/or service
personnel. When enabled, the voltage monitor signal from the Model 4048 Power Supply
will alarm if the voltage drops below a fixed threshold.
Power Supply voltage alarm thresholds as measured at front panel test points. The Model
4020 Modular Power Supply does not generate a voltage monitor signal.
Table 43: Power Voltage Alarm Thresholds
The external contact monitor is always enabled. However, jumpers are used to enable or
disable monitoring of “ERROR” indicators and low-voltage.
positions of the jumpers. The jumpers are located on the card cage backplane near J16 at
the top left corner.
Table 44: Common Control Alarm Enable/Disable Jumpers
The external alarm input signals and the alarm output signals are located at connector J16
on the top left corner of the back of the console card cage. The connector is a removable
terminal block.
shows the signal connections of the alarm connector.
Power Supply
Alarm Threshold
+12V
11.95
+5V
4.6
-12V
-11.00
Battery
11.1
Alarm Status
Jumper Position
“ERROR ALARM” enabled
JP2-ON
“ERROR ALARM” disabled
JP2-OFF*
“VOLTAGE ALARM” enabled
JP1-ON
“VOLTAGE ALARM” disabled
JP1-OFF*
* factory default
Содержание 4000 Series
Страница 1: ...Series 4000 Communication Control System Installation and Configuration 025 9533Y...
Страница 6: ...6 025 9533Y...
Страница 28: ...Introduction 28 025 9533Y...
Страница 88: ...Common Control Equipment Installation 88 025 9533Y Figure 22 Console Duplex Wall Jacks...
Страница 110: ...Common Control Equipment Installation 110 025 9533Y...
Страница 172: ...Console Installation 172 025 9533Y...
Страница 192: ...Audio Level Adjustments 192 025 9533Y...
Страница 230: ...Accessory Installation 230 025 9533Y...
Страница 236: ...Console ANI Programming 236 025 9533Y...
Страница 339: ...339 RSMP Operation Figure 99 Main Screen...
Страница 350: ...Radio System Management Program 350 025 9533Y...
Страница 362: ...Appendix B Troubleshooting 362 025 9533Y...
Страница 417: ...417 Index wiring accessories 164 wall jack 86 wiring diagram for M4219 244 X XMT button labels 332 XP settings 247...
Страница 418: ...Index 418 025 9533Y...