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Option 54 – Links
The Links option offers a powerful method of interconnecting zones, output functions, codes, keypads, and
MAX (access control) modules. The links table is constructed by creating a link between one of the source
types and a valid destination type. Activating the source of a link activates the destination – this can be used
to switch outputs on and off to omit zones, codes, keypads and MAX modules from the system.
The links function allows MAX destinations to be assigned a (*) star function. If the destination is
programmed as MAX and the (*) star is allocated, the assigned MAX door relay will open for the duration
the link is active. During this period no MAX alarms are generated if the door contact timeout is exceeded.
The on-board horns are deactivated and the green open LED will be illuminated throughout.
When the link is deactivated the MAX horn sounds and the door relay remains open for the programmed
relay duration period. - simulates an egress button activation.
If a max is disabled as the destination of a link, a card swiped at the max will still cancel an alarm or unset
(disarm) the system. However it will not activate the relay or do a max function.
The number of links that can be assigned on the GX-48 system is 64 and the GX-520 system is 256.
Programming Links
On selecting the Links option, the details of Link 01 are displayed. If no link has been assigned the screen
displays 01 NOT USED.
The details of each link can be displayed using the A> and <B keys, or a specific link can be selected by
entering the required link number, for example 05, 29. When the required link is displayed, press, the ent
key to begin the programming procedure. The system prompts for the Link Source to be assigned. If groups
are set (armed) then some sources and destinations will not be available for programming:
1. Press the # key to select the required link source from the available types (refer to Table 23. Link
Source).
2. Press the A> or <B keys to select the actual link source (for example, the zone address or the user code
number).
3. If the source is required to toggle the destination on and off, press the * key. The source is prefixed by a
* on the display.
NOTE: The link destination is activated by the first operation of the source and then deactivated by the second
operation.
4. Press the ent key; the source of the link is assigned and the keypad prompts for the link destination to
be allocated.
5. Press the # key to select the required link destination from the available types (refer to Table 24. Link
Destination).
6. Press the A> or <B keys to select the actual link destination (for example, the zone address or the output
type). To cancel a link program the source as not used.
7. Press the ent key.
8. If the link destination is d). Output Type and Groups have been enabled (refer to option 63=OPTIONS)
then each link must be allocated to at least one group (use the A> or <B key to move between the group
blocks; press keys 1 – 8 to assign the relevant groups in each block) and press the ent key.
NOTE: The groups determine which of the assigned output type destinations the link activates.
9. The details of the assigned link are displayed.
NOTE: If the link is currently active, the source is separated from the destination by a + (plus) symbol. If the link
is not active a – (negative) symbol is displayed.
10. Press the A> or <B key to move to the next link to be assigned and repeat steps 1 –9 or press the ent
key to escape from the LINKS menu option.
GX-Series Control Panel Installation and Setup Guide
6-79
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