Potter PFC-9000 Series - Manual (Page 19)

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PFC-9000 • 5403535 • REV G • 9/08
Field Wiring Terminations
P2: Connects to the first adder annunciator chassis.
24 VDC IN and OUT: In terminals for 24 VDC Aux. power from PFC-9000 and out terminals for power to next annunciator.
RS485 IN and OUT: In terminals for RS-485 communication from PFC-9000 and out terminals for RS-485 to next annunciator.
P11: Not used
SW1: See page 22
SW2: See page 22
Note: - RS-485 wiring must be twisted and shielded
- Separate cables must be used for power and the RS-485
- Maximum RS-485 wire distance is 8,000 ft of 18 Awg
- Power Requirements: LCD 100ma Standby
150ma Alarm
LED-32 50ma Standby
150ma Alarm
The 24VDC field wiring must be of an appropriate gauge for the number of annunciators and the total wire length.
Annunciator Wiring Instructions
Step 1: Install Backbox
Step 2: Connect Field Wiring for First Annunciator
· Attach two conductor twisted shielded cable from RS-485 terminals on panel to RS-485 “IN” terminals on annunciator.
The “S” terminal is for the cable shielding.
· Attach two conductor power cable from 24VDC Aux Power terminals on main panel to 24VDC “IN” terminals on annunciator.
· If not the last annunciator in the series, remove jumper JW1. (RA-LCD only)
· Assign address as described below.
Step 3: Attach Field Wiring to Subsequent Annunciators
· Attach two conductor twisted shielded cable from RS-485 “OUT” terminals on previous annunciator to RS-485 “IN”
terminals on next annunciator. The “S” terminal is for the cable shielding.
· Attach two conductor power cable from 24VDC “OUT” Power terminals on previous annunciator to 24VDC “IN”
terminals on next annunciator.
· If not the last annunciator in the series, remove jumper JW1.
· Assign address as described below.
· Continue until all annunciators are installed.
Annunciator Address Programming
Each annunciator must be addressed uniquely and sequentially in order for the panel to recognize the device. The addressing
is completed using the dipswitches on the annunciator. Both the RA-LCD and the RA-LED32 utilizes the SW1 switch for the
address. The RA-LED32 has an additional set of dipswitches, SW2, for disabling the common features (i.e. System Reset, Signal
Silence, etc.) as described below.
The RA-LCD is addressable by address, beginning with Address 33, whereas the RA-LED32 is addressed by the number the
annunciator is in the system.
EXAMPLE: If a system had an RA-LCD and RA-LED32 annunciator the RA-LCD would be addressed 33 and the RA-LED32
would be addressed as 2 for being the second annunciator in the series. Use the following tables for Dip Switch Positions.
Do not use 4 Wire Resettable Smoke power from main terminal.
Accidentally connecting the 24 VDC Power connection to the Communication or vice versa will result in annunciator and/or
panel damage!