Allen&Heath GL4000 SERVICE MANUAL - Manual (Page 41)

ALLEN & HEATH GL4000 SYS-LINK OPTION 7
PLUG ON THE INTERCONNECTING CABLES:
SYS-LINK connectors are female 25way D-type. Use 25way D-type male to male connector cables.
Connect pin one to pin one on all connectors. Connect shield (screen) to 0V. Standard cables are available
from electronic suppliers or computer shops. It is advised that the cable is a screened type less than 10
metres. Use professional quality locking connectors.
When connecting to equipment other than the GL Series link all unused audio inputs to 0V earth
at the SYS-LINK input.
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TEST THE SYSTEM:
Test all SYS-LINK inputs and outputs for correct signal level and quality by probing the D-connector pins
or by interconnecting two consoles with SYS-LINK fitted. Test the PFL & AFL system for correct DC buss
switching.
The SYS-LINK circuit diagram and technical details are included for reference.
The SYS-LINK Applications Note AP2787 is included separately with these fitting instructions. Provide
this note to the user as applicable.
Please refer any queries to your Allen & Heath appointed service agent.
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