ICT Protege PRT-RDE2-PCB, Руководство по установке

Страница: 12 / 42

12
PRT-RDE2-PCB Protege Ethernet 2 Reader Expander Installation Manual | June 2017
2.10 Slave Device Network
The Protege Reader Expander incorporates a secondary encrypted RS-485 communication interface that can
be used to expand the functionality of the Reader Expander for the purpose of High Rise Elevator Control. A
floor control module PRT-PX16 Protege 16 PGM Expander, set as a floor control device, is attached to the
slave communication interface.
Connection of the communications shall be performed according to the following diagram. It is important that
the S+ Slave Communications Power be supplied from an 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
Always connect the Reader Expanders SA and SB terminals to the SA and SB terminals of the slave devices.
The S+ and S- must go to a 12V power supply source as shown in the following diagram.
SA
S+
S-
SB
NA
N+
N-
NB
NA
N+
N-
NB
+AUX- Z13 COM COM Z14 Z15 Z16
AUX Power from Module or
external power supply
Slave devices connected to the Reader Expander Slave
interface use their N+, N-, NA, NB terminals
Reader Expander
Slave Network
Slave Power Supplied by Module
The above diagram shows a power connection taken from the auxiliary power outputs on the Reader
Expander's zone terminals. This connection is suitable for smaller systems provided that the:

Maximum total output current,

AUX DC output current,

B1/B2 DC output current, and

Total combined current
are ALL lower or equal to the values outlined in the Technical Specifications section. If these currents are
exceeded, a separate power supply shall be used.