Videx SENTRY Manuel d'utilisateur télécharger pdf (Page 8)

SENTRY1 TECHNICAL MANUAL VER1.6

Sentry 1 Status LED’s

The Sentry 1 PCB incorporates four LED's which are used to indicate what state the PCB

is in. These LED's are labeled D10, D11, D12, D13. They relate to the following functions:-

D10 : When this is illuminated, the system is awaiting a call.

D11 : When this is illuminated, the system is busy.

D12 : When this is illuminated, the call is from door one.

D13 : When this is illuminated, the call is from door two.

Sentry 1 Jumper (JPR1)

The Sentry 1 PCB includes a link option (JPR1) which when in position A, the system will

only allow one call to be activated at anyone time. The system must timeout before

another call can be registered. When the link is in position B the system will allow another

button to be pressed without waiting for the system to timeout. (The link should only be

fitted in position B when the system is being tested or being used as a one door system).

POWER SUPPLIES

A control cabinet for an audio system will contain a 13.8Vdc PSU with battery back up

facility. The standard power supply is rated at 1 Amp. (Care should be taken to calculate

the current consumption of the lock release as it may be necessary to upgrade this power

supply to either a 2 Amp or even a 3 Amp). Video control cabinets will have an additional

PSU rated at 20Vdc 1 Amp surge or 800mA continuous. They additional power supply is

described below which is used to power the video phones

Art. 893N

20Vdc 800mA continuous 1A surge PSU. This power supply only has an output when

either a 0V is applied to –C or when a voltage is applied to +C. At all other times the +

output is switched off.

Connection Function

230V~ 0 Mains voltage input

+ Switched 20Vdc output (Triggered by –C or +C)

- 0V

-C 0V trigger input (From 4V to 0V)

+C + volts trigger input (From 8V up to 30V)

D+ +20Vdc output via diode

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Videx SENTRY Manuel d'utilisateur Page 8