Myalarm V-LCD1 Instrukcja Obsługi Pobierz pdf (Strona 63)

SYSTEM OPERATION

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System 2 Installation / Programming Manual

User LED Operation

Reader and Keypad LED outputs provide the user with feedback of System functions at the door location.

These LEDs are linked to the Main door relays only.

The Green LED will go on solid for the programmed relay time whenever a valid user presents a card. It will

flash four times for an invalid card and two times for an error in reading a card. A card error could be

caused by incorrect wiring or an incorrect swipe. Failure to complete a swipe of the card or “dipping” the

card may produce a card error. This feature allows system administrators a degree of trouble shooting for

new and existing systems.

The Red LED output will be on solid except when a main relay is active for a valid user.

Network LEDs

The System 2 has two LEDs for monitoring RS485 communications. These LEDs are located in the lower

right hand corner of the circuit board. The RS485 RXD LED indicates that the slave being observed is

receiving data from the master and the RS485 TXD LED indicates that the slave is sending data to the

master. The slave’s receive LED will flash about once a second as it is polled by the master. Since the

master polls only one slave at a time, and each of the slaves on-line respond only when polled, it is possible to

tell how many slaves are on line by watching the LEDs at any slave.

To determine the number of slaves on-line, first go to any slave (it doesn’t matter which one). Next, watch the

slave’s send and receive LEDs. The send LED will flash once followed by one or more flashes of the receive

LED. It is the number of flashes of the receive LED, per each flash of the send LED, that indicate the

number of slaves on-line. For example, if the send LED flashes once for every four flashes of the receive

LED, there are four slaves (including the slave you are observing) on the system.

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Myalarm V-LCD1 Instrukcja Obsługi Strona 63