Galaxy 3 Series Programming Manual
22
Access Door MAX LED Status
When the access doors option is entered in engineering mode the MAX address can be displayed by pressing
the # key. This is shown in the following Figure graphically for a MAX, a MicroMAX or MAX
3
address as
26.
Figure 1. LED Status
The line numbers are represented by the top row in MAX and blocks 2
nd
and 3
rd
from the top in the
MicroMAX/MAX
3
and the address numbers are represented by the bottom row of blocks in the MAX and
the four bottom blocks in the MicroMAX/MAX
3
. The top LED on the MicroMAX or MAX
3
is always off in
this mode.
The combinations are shown in the following Figure:-
Figure 2. Line Number/Module Address
Address
The first digit of the two digit number refers to the line that the module is connected to ( Line 1 on the Galaxy
3-48; lines 1-2 on Galaxy 3-144; and lines 1–4 on the Galaxy 3-520); the second digit is the physical address
number of the MAX module. For example, a MAX module displaying as 25 indicates that the module is on
line 2 and is addressed as 5.
Pressing the # key gives a graphic representation of the MAX address in a binary format. The top two boxes
on the top row indicate the line address; the bottom four boxes indicate the physical address.
Descriptor
The descriptor is a maximum of 16 characters entered in the MAX Parameters option (63.2.3)
Engineer Mode
On accessing the Access Doors option in engineering mode, each on-line MAX module displays its address
by lighting the appropriate LEDs. To help the engineer identify each of the MAX modules, the keypad dis-
plays a graphic representation of the MAX module address. By matching the (LED off) and (LED on)
image to the LEDs on the MAX, the engineer can identify each MAX module on the system.
25 - Access Doors (cont’d)
2 6M A X2 6M A X
MicroMAX/MAX3 LEDs Displayed
MAX LEDs Displayed
Bottom
Top (unused)
Line No.
Module Address
4
1
3
2
4
1
3
2
0
7
6
5
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