7.5 TYPICAL RTK 725B REAR VIEWS
The following details are provided as typical examples of RTK 725B Annunciator rear views
showing alarm inputs, remote pushbutton inputs, common alarm relay outputs, 24VDC logic
and signal wiring.
7.6 Typical Large Window Version,
(each alarm window = 60mm w x 60mm h)
The above rear view shows a typical large window RTK 725B annunciator 4 cells wide x 2 cells
high with seven active alarms, common relay card and an integral pushbutton module.
Each cell within the Annunciator is used to display a single channel.
In the example above cell 0 and cell 4 are equipped with a four channel alarm card plus
provision for three remote pushbutton inputs. As standard the pushbutton inputs are software
configured as follows:-
Cell 0 ---- P1 = Lamp Test / P2 = Ack / P3 = Reset
Cell 4 ---- P1 = System Test / P2 = Silence / P3 = 1st Reset
These can be reconfigured in software as required.
In large window versions of the RTK 725B only the first cell in a group of four is supplied with
an alarm card and the outputs are distributed to the next three cells – working down in columns
then moving onto the next row.
WR
OV OV +V+V OVC +VC
Rx F1 F2 Tx
24VDC SIGNAL
CR1 CR2 CR3 CR4
SUPPLY VOLTAGE
CHANNEL
AP
P1
EXT. PB
INPUTS
2
3
1 4 C
P3
P2
1 - 4
2
3
1 C4
AP
5 - 7
CHANNEL
CELL 6 CELL 4 CELL 2 CELL 0
CELL 3CELL 7 CELL 5 CELL 1
+V
P3
P2P1
INPUTS
EXT. PB
ACK RESET
+V
LAMP
TEST
SYSTEM
TEST
MUTE
1ST
RESET
F2 - 1A
INTERNAL SIGNAL
SUPPLY COMMON
24VDC LOGIC
SUPPLY VOLTAGE
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