Section 3 – Installing the Operating Panels3-3To mount and wire the operating panel, perform the following steps:Step Action1 Locate the operating panel(s) where the user may conveniently turn BA protection to DaySet or Nite Set. The right-hand side of the operating panel should be located no closer than4” from a side wall.2 Run the buses as required and make sure to appropriately tag them, so that can be readilyidentified at some future time, if maintenance becomes necessary. Limit each RS-485 busport to a single wire run.3 Connect the RS-485 bus cable to the control unit (see table below).Wire Gauge/Color Function RS-485 #1TerminalRS-485 #2Terminal#19 AWG Blue RS-485 17 21#19 AWG Yellow RS-485 18 22#16 AWG Red + 12 VDC Power 19 23#16 AWG Black DC Return Power 20 244 Remove the nylon screw on the bottom of the operating panel and separate the back platefrom the front of the unit.5 Mount the back plate to the wall using any of the appropriate holes.6 Connect the operating panel wires to the RS-485 cable, matching color to color.7 Each device that connects to the RS-485 bus has a terminating jumper designated E1 (seeFigure 3-1). Inserting the jumper connects a terminating resistor; removing the jumperdisconnects the resistor. Insert the jumper on the last device on each RS-485 bus. All otherdevices on the RS-485 bus run must have the jumper removed.8 Reconnect the front plate to the back plate and reinsert the nylon screw.9 Install the instruction label at the rear of the operating panel in the slot provided.10 Repeat the steps for each operating panel.Addressing the Operating PanelsThe control unit must be powered up to address the operating panels. This can be done now, bytemporarily applying the AC power, or can be done later, after the AC and standby battery wiring iscomplete. See the Power Requirements section.Communication Group Number and Unit NumberEach operating panel must be addressed with a communication group number and a unit number forproper communication with the control unit. The group number and unit number serve to supervise thepanel, permitting the control unit to periodically address each panel and verify a response.There are two group numbers (numbers 00 and 01) that are reserved for the operating panels (thecommunication group default value is number 31). The unit numbers available are 0 through 7. Werecommend that the unit numbers start with the default value 0 for the first operating panel in thecommunication group, and continue with 1 for the second panel, and so on, up to unit number 7.
