Orion Security Systems Ltd. Multiplex_-

Installation / Programming Instructions

1.The DIP switches work as follows: 1. ON = alarm on no zone response. 2. ON = alarm on tamper (2-zone mux only.) 3. ON = enable piggy back alarm (at two zone base address +1) 4. ON = alarm on zone short (EOL resistor shorted) 5. ON = alarm on zone open (loop open) 6. ON = select hi half (address 73-136) OFF = (9-72) 7. ON = XL4. SW 6 is ignored if SW7 is ON 8. ON= catch all glitches. Switches 1,2,4, and 5 are ORed together. In other words if SW4 and SW5 are ON, the zone output will go ON if the loop is either open OR shorted. The piggy back only has one switch, and the output is directed to the next higher address from the left hand loop.

2. The outputs are open collector transistors. When the selected condition occurs, the transistor turns on. To drive a relay, connect one side of the coil to +12V and the other to the desired output. There is no current limit on these outputs, so if the output is shorted to +12, the driver IC will be damaged. Limit the coil current to 50 mA per output, and a maximum of 400 mA per bank of 8. The outputs can be wire ORed together. For example if a single output is needed that goes ON when either zone 15 or 23 goes HI, simply wire those outputs together. However, the coil current must still be limited to 50 mA.

3. Zone outputs are updated each time the panel polls the corresponding address. The outputs respond in less than one millisecond after the zone is polled. Any delay in response is due to the time it takes the panel to poll all the zones.

4. On power up, the main panel polls every possible address looking for a response. Once the system settles into normal operating mode, it polls only the zones it found on power up, ignoring the others. Outputs corresponding to zones not used are undefined and can have any state.

5. The two zone muxers have some interesting properties. While an 8 zone mux uses 8 consecutive addresses, and each of them is polled by the main panel, the two zone muxes use only one address, and the information for both loops is passed back at the same time. The mux always returns the state of the RH loop when the address of the LH loop is polled. Depending on the setup of the system, the main panel may or may not use this info. As a result, a system can have two 2-zone muxes at consecutive addresses. In this case the RH loop of the lower address loop cannot be enabled or there would be an address conflict. The alarm panel can be programmed to ignore the data from the RH loop of the mux with the lower address, and the problem is solved. The monitor board uses a different approach: If the RH loop of a 2-zone mux shares an address with the LH loop of another 2 zone, or any address of an 8-zone, the RH loop is ignored, and the other loop over-rides. If there is no address conflict, the RH loop controls the output. If alarm on no zone response is selected, the outputs for any RH loop that does not conflict with a "real" zone will be set high when the panel polls all possible loops. These will go to their correct state when normal polling resumes.

6. Catch all glitches... The panel can take a second or so to poll every possible address. The muxes latch alarm information so that if a loop is opened and restored before the panel gets back to it, the panel still finds out. This behavior can be treated two ways selected by SW8 of the dip switches. If catch all is selected (ON), any loop opening of shorter duration than the time it takes to poll all addresses still causes the output to go hi at least until the address is polled again. If not selected, the state of the address AT THE TIME IT IS POLLED affects the output, and short duration events are ignored.

7. The dip switches can be changed at any time, and the board will respond to the changes immediately. However, zones that are not polled will not update.

8. The base address for a two zone mux can be odd or even and on any address (at least on some versions of this system). The RH loop has the next higher address. This can put it in a different bank (group of 8) from the base, or even on the hi half while the base address is in the low half. Be careful.

9. For 2-zone muxers the two loops are output on separate outputs, but the tamper and no zone response is put out on both together if selected.

10. The night lock inputs are normally off. To lock a bank, apply 5 to 12 volts to the lock input. When locked, any output that goes high in a bank will stay high until the bank is unlocked, and the selected conditions go away. When locked, the zone output will stay high even if the DIP switch is changed to deselect the triggering condition. The lock inputs each take care of a bank of 8 outputs. The lowest number input corresponds to the lowest order output bank. Again, remember that it is possible on some systems to have the RH loop of a 2 zone mux on a different bank or even different address half from the LH loop.

11. The XL4 panel uses only addresses 9-72. SW7 must be on for correct operation with the XL4. If SW7 is on, the state of SW6 is ignored. If SW7 is on when used with a panel that allows 128 mux points, all points are monitored by the board. The output addresses are "folded" on top of each other so that the lowest number output will be for zone 9 and zone 73. This will work fine if no two zones have addresses that differ by exactly 64. In other words, this could be handy to monitor high and low addresses on the same mux bus if the addresses are set up not to conflict. If this is done, the bank lock inputs will lock the corresponding OUTPUT bank, regardless of whether the triggering zone is in the high or low half.

12. The board has brown-out protection. If the supply voltage goes below 9V, all outputs are turned off. When power is restored, all zones are set low even if they were locked. The board then immediately monitors the data bus. Once every zone has been polled the outputs will be correct. If the panel restarts too, it will check every address again. Also see note 5 above.