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POWER ON/POWER OFF/ | ALARM OUT/MODE OUT Output terminal | |||
ALARM IN/REC/CLOCK ADJ | ||||
Input terminal | 5V |
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• Input Circuit |
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| 10kΩ |
| 5V |
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Input | 22kΩ |
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| Output terminal |
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terminal |
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| 0.047µF |
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| GND terminal |
GND |
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| <Interface circuit inside the unit> |
<Interface circuit inside the unit> |
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Figure 7. Schematics for Alarm Input and Output Terminals
3.Optional. Connect the recorder to a remote source for turning the unit on/off.
By using the POWER ON/POWER OFF terminals, it is possible to turn on/off the recorder externally. The POWER ON terminal turns power on or off (refer to Figure 8). The POWER OFF terminal turns power off (refer to Figure 8). Turning the recorder on/off also controls the output of the DC 5V OUT terminal (refer to Figure 8). Figure 9 shows the schematic for the POWER ON/POWER OFF terminals.
Using POWER ON terminal
POWER ON |
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terminal |
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| ground |
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Unit's |
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power | power on |
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| power off |
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| shut down |
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DC 5V OUT |
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DC 5V |
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Max.30mA) |
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boot power on up
Using POWER OFF terminal
POWER OFF |
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terminal |
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Unit's |
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power | power on |
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| power off |
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| shut down |
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DC 5V OUT |
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| DC 5V |
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Max.30mA) |
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Figure 8. Operation of Power On and Power Off Terminals
POWER ON/POWER OFF/ ALARM IN/REC/CLOCK ADJ
Input terminal 5V
• Input Circuit
10kΩ 5V
Input 22kΩ terminal
0.047µF
GND
<Interface circuit inside the unit>
Figure 9. Schematic for Power On and Power Off Terminals
4.Optional. Connect equipment to the CLOCK ADJ, REC, MODE OUT, and CALL OUT terminals. Refer to Figure 10 for schematics of the input/output terminals.
The CLOCK ADJ input terminal is used for adjusting the clock. The input is active when a ground or low voltage signal is applied. The input is
Pelco Manual | 13 |