Bus Termination
One APM Multiple APM’s
J5
(APM)
Placed (Standard) Open
Audio
(ARJ03P)
n/a
Position 1
(Only last one in Chain)
Com
(ARJ03P)
n/a
Position 1
(Only last one in Chain)
Analogue / Digital Paging Selection
Digital Paging Analogue Paging
J1
Placed (Standard) Open
J2
Placed (Standard) Open
J3
Open Placed
J4
Open Placed
1) Only one APM on one databus
When only one APM1xx is used on the databus, the databus needs to be terminated by the termi-
nation jumper J5 which can be found internally inside the unit’s enclosure.
2) Multiple APM’s on one databus
When multiple APM1xx units are daisy chained on one databus, the termination jumper should
only be placed on the last junction box (ARJ03P) in the bus structure. Both the audio and com-
munication lines need to be terminated by using these jumpers.
The tables below show which jumpers need to be placed for which application.
To Next Page
Loading...