Allen&Heath GL4000 SERVICE MANUAL - Manual (Page 43)

2 GL4000 SYS-LINK APPLICATIONS NOTE AP2787 ALLEN & HEATH
CONSOLE TO CONSOLE CONNECTION USING SYS-LINK
0V 0V 0V 0V 0V 0V 0V AUX8 out AUX10 out MTXB out MTXD out 0V
MONO out
GRP5 out GRP6 out GRP7 out GRP8 out AUX7 out AUX9 out MTXA out MTXC out
0V
0V 0V 0V 0V 0V 0V 0V AUX8 in AUX10 in MTXB in MTXD in 0V
MONO in
GRP5 in GRP6 in GRP7 in GRP8 in AUX7 in AUX9 in MTXA in MTXC in
0V
LEFT out
RIGHT out
GRP1 out GRP2 out GRP3 out GRP4 out AUX1 out AUX3 out AUX5 out
PFL out
0V
PFL DC
0V 0V 0V 0V 0V 0V 0V AUX2 in AUX4 in AUX6 in AFL in AFL DC 0V
LEFT in
RIGHT in GRP1 in GRP2 in GRP3 in GRP4 in AUX1 in AUX3 in AUX5 in
PFL in
0V
PFL DC
B A OUT IN OUT
IN
SYS-LINK connectors are 25way D-type female.
Use 25way D-type male to male connector cable.
Use screened cable, connect all pins.
IN A IN B B OUT A OUT
MASTER GL4000
MASTER GL4000
IN A
MULTI OUT
Line level output at -2dBu
Unbalanced, in-phase
Low impedance <75 ohm
P/AFL DC output is open collector sink to 0V through 15k.
All outputs are pre-fader Line level input at -2dBu
Unbalanced, buffered in-phase
High impedance > 10k ohm
P/AFL DC input for pulldown to 0V through 15k resistor.
When connecting to equipment other than GL Series
link all unused audio inputs to 0V earth at the SYS-LINK
connector.
B to link GRP 5-8, AUX 7-10, MTX A-D
SLAVE GL4000
SLAVE GL2
0V 0V 0V 0V 0V 0V 0V AUX2 out AUX4 out AUX6 out AFL out AFL DC 0V
A to link GRP 1-4, AUX 1-6, L, R, PFL & AFL