A-2
OP27,
OP37 Equipment Manual
Release 05/99
Display OP27M OP27C OP37
LCD type Monochrome
STN
Color STN Color STN TFT
Resolution (horizontal x vertical) 320 x 240 640 x 480
Active screen area (mm x mm) 115 mm x 86 mm 211 mm x 158 mm
Back-lighting
Service life
1)
approx.
1 CCFL tube
22,000 h
1 CCFL tube
25,000 h
2 CCFL tubes
25,000-
50,000 h
2 CCFL tubes
25,000 h
1)
The
back-lighting tube for the display is subject to wear and is therefore not covered by the warranty
. Its service life
is approximately 10,000 to 25,000 hours, depending on operating temperature and type. In unfavorable operating
conditions we recommend replacing the tube after the period has elapsed. The tube is available as a spare part.
Keyboard OP27 OP37
Type Membrane keyboard
System keys with permanent functions 24 (4 having an LED) 32 (4 having an LED)
Function keys having configurable func-
tions
those included as soft keys
24 (18 having an LED)
14
36 (28 having an LED)
20
Power supply OP27 OP37
Rated voltage (VDC) + 24 V DC
Permissible range (VDC) +18.0 to +30.0 V DC
Max. permissible transients 35 V (500 msec)
Time between two transients 50 sec minimum
Typical power consumption at 24 V Approx. 0.3 A Approx. 1.6 A (without AT
cards)
Switch–on current I
2
t 0.45 A
2
s 0.55 A
2
s
Fuse, internal Miniature fuse
Backup battery OP27 OP37
Type Lithium battery
Voltage/capacity
1)
3.6 V/approx. 1.5 Ah
Service life > 4 years
1)
Subject to modification.
Contact assembly for power supply
connection
OP27 OP37
Switching power 24 V DC, 0.3 A (no inductive load)
Technical
Data
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