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Redback® Proudly Made In Australia 33
Redback® A 4480B
8 In to 8 Out Audio Switcher
6.0 TROUBLE SHOOTING
6.1 SYMPTOMS AND REMEDIES
SYMPTOMS
REMEDIES
Signal presence leds all come on
Keyboard not detected
None of the buttons work
Emergency Mic keeps triggering
Check internal fuses
Remove & reinsert keyboard, try another keyboard
Turn A 4480B off and repeat setup
The unit may be locked. Hold down confirm & cancel
buttons to unlock (and lock) the unit. See section 4.4.
Make sure the emergency mic is turned off when not
in use.
6.1.2 RJ45 cabling configuration for system components (586A ‘Straight through’)
System components are connected using “pin to pin” configuration RJ45 data cabling as shown in fig 6.1B. When install-
ing ensure all connections are verified
with a LAN cable tester before switching any system component on.
Failure to follow the correct wiring configuration may result in damage to system components.
Troubleshooting
586A
1 RX+
2 RX-
3 TX +
4
5
6 TX-
7
8
Straight Through
(both ends)
Pins Face Upwards
1 TX+
2 TX-
3 RX +
4
5
6 RX-
7
8
Fig 6.1B