Tyco RDU Mk2, Инструкция по установке и программированию, Страница: 20 / 178

RDU Mk2 Installation & Programming Manual Document No: LT0499
System Description
Page 2-10 8 April 2015 Issue 1.02
FIG 2.3.1
SYSTEM STRUCTURE: MAF CONFIGURED RDU
2.3.2 INTER-CONNECTION & STRUCTURE
– MAF CONFIGURED RDU
A basic MAF Configured RDU system has one Controller/Display and one MAF/PSU,
interconnected by Flat Ribbon Cable (FRC), as shown in Fig 2.3.1. For New Zealand
operation, a Display Extender Board is normally also used.
2.3.2.1 16 Zone LED Display Boards
16 Zone LED Display boards are driven from the "LED DISPLAY" serial bus on the
Controller/Display PCB. They receive power from the MAF/PSU via two power leads.
Where more than one is required they are connected in series from right to left (as viewed
from the front) on the RDU. The 34 way FRC from J13 of the Controller goes to J1 ("From
Previous") of the right hand Display Bd. Zone 1 (default) corresponds to the top LEDs on
the left hand Display Bd.
There are two types of 16 zone display boards. One type has two columns of LEDs, the
other type has three columns. For the three column type, the last board requires the "end of
bus" mini-jump connector, (link LK1), to be fitted. Up to four 3 column boards or ten 2
column boards can mount internally. Additional Display boards can be mounted externally,
up to 33 in total, to provide individual zone status indication for all 528 zones. The additional
loading due to extra Display boards will need to be carefully considered when planning the
system battery/PSU configuration. Refer to section 5.3.
LED Display boards may also annunciate FIP Relay status, i.e., Alarm = relay activated,
Isolated = relay isolated, Fault = relay wiring fault (i.e., supervision fault). The default is that
status information as received from the FIP is treated as zone status information at the RDU.
If relay status information is to be processed correctly then the RDU must be specifically
programmed as to which zones are relay type (refer section 7.1). Relay type zones do not
generate FF type alarm events at the RDU and alarm LEDs corresponding to relay type
zones do not flash.
The default zone to LED mapping maps zone 1 to the top row of 3 LEDs on the left most
display. Zone 2 to the row below it, etc, (top to bottom, left to right). Zone to LED mapping is
described in section 7.7.