Tyco RDU Mk2, Инструкция по установке и программированию, Страница: 149 / 178

Document No: LT0499 RDU Mk2 Installation & Programming Manual
Installation & Wiring
Issue 1.02 8 April 2015 Page 8-19
Alternatively, the PA0769 Termination Board has 3k3 resistors already fitted (gives
7mA LED current which is adequate for interior use).
(ii)
Column Format - where arrangement of zone alarms into columns is acceptable,
LED Mimic Display boards can be used. This simplifies the wiring considerably.
The obsolete Picture Frame Display (ME0074 or ME0073 Front Service, or ME0076
Rear Service) is a suitable cabinet, and also has mounting hardware for four 16 zone
Display mimic boards (PA0753), plus one Common Indicator and Index Lamp Mimic
board (PA0760). Figure 8.4.2 shows this arrangement.
Note that a special 3-way FRC is required for the Display Extender board, so that the
miscellaneous inputs are accessible in the RDU cabinet. This is not a standard part,
and will need to be made up to suit the application.
8.4.3 ACTIVE DISPLAY
An active display is driven from the RDU display chain and is economical for large mimics.
The Mk2 Picture Frame Display (FP0967) cabinet is suitable for housing an active display
with FRC or a 12 way shielded cable linking it to the RDU (ref. Figures 8.4.3 and 8.4.4). No
supervision requirements for this cable are specified in NZS 4512, but because some
individual wires in the cable are not supervised (though the cable as a whole is), good fire
alarm practice dictates that the distance between the panel and indicating unit should be
limited for principal brigade mimics. The wiring should also be well protected by conduit,
trunking or equivalent. An electrical limit of 30 metres applies to this connection.
Note the common Normal, Fire and Defect LEDs will need to be specially arranged.
The following parts are available for constructing displays of this type:
PA0742
PFD NZ DISPLAY EXTENDER BOARD,24V
(requires special cabinet)
PA0741 PFD DISPLAY 16 ALARM LED,24V (ALARM LEDS ONLY)
(requires special cabinet)
FP0967 FP,1952-22,PICTURE FRAME DISPLAY,MK2
FP1002 FP MX1 16 ZONE LED DISPLAY EXTENDER
PA0772 PFD TERMINATION BOARD (FRC TO MULTICORE)
PA0483 UNPROTECTED TERMINATION BOARD
LM0056 LOOM,DISPLAY EXTENDER FRC,1.4M,26 WAY
LM0046 LOOM, DISPLAY EXTENDER FRC,0.5M,26 WAY
LM0092 LOOM,CONTROLLER TO FIRST DISPLAY,1.2M
A PA0772 PFD Termination Board is mounted in the RDU cabinet and in the PFD.
8.4.4 DISPLAY EXTENDER BOARD MISCELLANEOUS TERMINATION
The miscellaneous signals available through a NZ Display Extender Board are accessible
via a 26 way FRC and PA0483 unprotected termination board. A termination pin out
diagram is given in Fig 8.4.5. Refer to Sections 3.4.1.3 and 3.5.1 for electrical specifications
of these signals, and to section 2.4 for their logical functions.