10
PRT-PX16-PCB
Protege 16 PGM Output Expander
Installation Manual | June 2017
Always connect the PGM Expanders NA and NB terminals to the NA and NB terminals of the communication
network. The N+ and N- must go to a 12V power supply source as shown in the following diagram and
connected at ONLY one +12V power source.
NA
N+
N-
NB
NA
N+
N-
NB
NA
N+
N-
NB
+AUX-
Z1 COM
COM
Z2
Z3
Z4
Protege Integrated System
Controller or module supplying
power to networked devices
AUX power from Module or
external power supply
Next modules
on network
Network Power Supplied By Network Module
Warning: The 12V N+ and N- Communication input must be supplied from only ONE point.
Connections from more than one 12V supply may cause failure or damage to the PGM Expander or
device supplying network power.
i
The EOL (End Of Line) jumper setting MUST be set in the ON position for the LAST module on the
RS485 network. EOL is ON when the jumper is closest to the EOL text.
2.9
Slave Device Network
The Protege PGM Expander can be connected in Elevator Control Mode (see configuration section (see page
21)) to allow floor control of elevators using the RDI2 and PX16 modules.
Connection of the communications should be performed according to the following diagram. It is important that
the S+ Slave Communications Power be supplied from an either independent battery backed power supply unit
or a module connected to the slave communication interface capable of supplying the required voltage to all
devices on the slave RS485 network.
SA
S+
S-
SB
Slave Communications Connection
