Mircom RAX-LCD, Installation And Wiring Manual

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4
4.0 DIP Switch Settings
Each RAX-LCD Shared Display Annunciator needs to be assigned a unique address via the
switch SW1. The RAX-LCD DIP switches are set as:
The OFF setting is active. The addresses available for the RAX-LCD are 33 to 63. Set the
address as follows in the table below:
Note: All circuits are power limited and must use type FPL, FPLR, or FPLP power
limited cable.
Attention: Accidentally connecting any of the 24 VDC wires to the RS-485 wiring
will result in damage to the annunciator and/or to the fire alarm control
panel to which it is connected.
Table 2 Maximum Wiring Run to Last Annunciator
Max for all
Annunciators
Max Loop
Resistance
18AWG 16AWG 14AWG 12AWG
Amperes ft m ft m ft m ft m Ohms
0.12 1180 360 1850 567 3000 915 4250 1296 15
0.30 470 143 750 229 1200 366 1900 579 6
0.60 235 71 375 114 600 183 850 259 3
0.90 156 47 250 76 400 122 570 174 2
1.20 118 36 185 56 300 91 425 129 1.5
1.50 94 29 150 46 240 73 343 105 1.2
1.70 78 24 125 38 200 61 285 87 1.0
SW1-1
= Address A0
SW1-2
= Address A1
SW1-3
= Address A2
SW1-4
= Address A3
SW1-5 = Address A4
DIP switches are for assigning an address to the RAX-LCD.
Binary addresses 33 to 63 are available with the least
significant bit being switch SW-1 and the most significant bit
being SW-6. The OFF setting is active binary. DIP switches
SW1-7 and SW1-8 are not used. For example, address 33 is
set by setting SW1-6 and SW1-1 OFF and all the other DIP
switches are ON.
SW1-6 = Address A5(OFF)
SW1-7 = not used
SW1-8 =
Put in “OFF” position
for firmware restore
during power up. At
all other times put in
“ON” state.
i
!
SW1
1
8
DIP SWITCH SETTINGS
ON
OFF