Telex Integrated Signal Processor ISP-100 - Manual (Page 28)

3-4
10 July 1998
Changing the Fuse
The universal switching power supply in the ISP-100 adapts to input
voltages from 90 to 264 VAC, 50/60 Hz. To reduce risk of fire, replace
only with same type fuse. The fuse holder is located under the security
cover on the front panel.
The fuse is a standard 20mm X 5mm European type. The values used
are as follows:
All countries using 220/240 VAC, except Australia, use a ½ A slow-blow
fuse.
Schurter P/N: 0001.2501
Telex P/N: 51-04-052488
All countries using 100/120 VAC and Australia use a 1 A slow-blow fuse.
Schurter P/N: 0001.2504
Telex P/N: 51-04-051487
Changing the Battery
Figure 3-3 Battery/module removal tool.
The memory backup battery located under the security cover on the front
panel has an expected life of four years. If the Host LED is blinking the
battery needs to be changed.
CAUTION: The battery used in this device may present a risk of fire or
chemical burn if mistreated. Do not recharge, disassemble, heat above
212°F (100°C) or incinerate. Replace battery with Renata CR2450N or
MERLIN 40-02-052055 only. Use of another battery may present a risk of
fire or explosion.
Be sure to change the battery with the unit on. If the unit is turned off, all
of the setup information stored in the ISP-100 will be lost (i.e. the unit will
return to factory default mode).
WARNING:
Disconnect AC power
before changing the
fuse. Failure to do so
could result in a shock
hazard.
WARNING:
Failure to install the
proper fuse could
result in damage to the
unit, property, and loss
of life.
Leave the AC power
connected and the
ISP-100 turned on
when changing a
failed battery.
Failure to do so will
result in loss of
data.