14
Troubleshooting
No control at all.
– The KEY-2.7 forms just one part of an IR
system. There are potential issues with
connections, wiring, power supply, IR
receiver and emitter placement, plus
other optical and EM interference and
ground loop possibilities.
– It is best to strip the IR system back to just
one controller and debug from there.
– With no IR activity the IR terminal
should read 0V - if not then check all wir-
ing and connections, ensure the keypad
programming is correct, and the keypad is
functioning correctly.
Keypad does not track the MZA-4.7.
– Ensure the data termination has integrity,
and is not shorted to other conductors in
the CAT5E. Ensure the keypad is cor-
rectly zoned.
Specifications
IR receiver
Passthrough of modulated infrared whose car-
rier frequency is within the range of 32 KHz -
44.1 KHz.
Range: typically 8 m - Dependant on ambient
light level, angle of incidence and the remote
controls battery condition.
Wiring
Up to 200 m of CAT5E home run cable.
Voltage Current
12 V DC ±3 V
Typically 25 mA, Max = 60 mA
Dimensions
Cover Plate: Width = 75 mm,
Height = 120 mm,
Depth = 4.6 mm
Depth behind plate = 20 mm
Compliance
ICES-003, FCC.
Summary of Contents for KEY-2.7
Page 1: ...Keypad KEY 2 7 Instruction Manual ...
Page 6: ...6 Part Names and Function Continued Cover Plate Infra Red Window ...
Page 15: ...15 Template 1 ...
Page 16: ...16 ...
Page 17: ...17 Template 2 ...
Page 18: ...18 ...
Page 19: ...19 Memo ...