26
MACH 4002
Release
1.0
10/05
If required, the fan plug-in unit can be replaced. It may be replaced by an
electrician without turning off the device. Depending on the ambient tempe
-
rature the MACH 3000 can be operated up to one or two minutes with one
dissasembled fan.
U Disassembly of M4-AIR
V Loosen the two screws in the front panel of the fan plug-in unit
M4-AIR.
Caution: After a device is switched off, fan blades continue rotating for
a
number of seconds. Do not reach into the rotating fan!
V Pull out the fan plug-in unit a few centimeters out and wait until the fan
comes to a halt before removing it completely.
U Assembly of M4-AIR
V Disassemble the fan plug-in unit, which is to be replaced, as described
above.
V Slide the new fan plug-in unit into the chassis along the subracks abo-
ve and below as far as it will go.
V Make sure that there is a good connection to – the multipoint plug of
the plug-in fan unit – the female multipoint connector of the system
bus.
V Screw – the two knurled screws in the front panel of the plug-in fan unit
– to the frame of the chassis.
2.2 Displays
After applying the operating voltage, the software starts and initializes itself.
The device then performs a selftest. Various LEDs light up in the process.
The process lasts approximately 60 seconds.
LS DA
M4-8TP-RJ45
LS DA LS
P P1P2P3P4
RM
RL1 RL2 FAN RUN
L/D FDX
1000
AN
TP/FO
RING
PORT
STBY
LED
TEST
2
1
LED
SELECT
LED
MACH 4002 48+4G