CCS800 |
Service manual | Chapter 7 | Diagnostics and faultfinding
en | 31
Bosch Security Systems | 2005-01| 3922 880 21112
7.3.12
Control line test with mode switch (A)
By use of a combination of different voltage levels at CTRL-L1 and CTRL-L2 each mode of the CPSU can be passed on
to the Delegate and Chairman units.
Set the “mode switch” (S2) is each position and measure the voltages at M30, M31, M32, M33, M4 and M5 related to M2
(GND).
Mode switch
Measurement values for A1 (V)
Position
(S2)
M33
(bit 3)
M32
(bit 2)
M31
(bit 1)
M30
(bit 0)
M4
(Control-L1)
M5
(Control-L2)
Auto-1
0
10
0
0
2.5
2.9
Auto-2 0
10
0
10
2.5 2.9
Auto-3
0
10
10
0
2.5
2.9
Auto-4 0
10
10
10
2.5 2.9
Open-1
0
15
0
0
2.5
5.7
Open-2 0
15
0
10
2.5 5.7
Open-3
0
15
10
0
2.5
5.7
Open 4
0
15
10
10
2.5
5.7
Override
10
10
0
0
1.0
5.7
Chairman
only 10 10 0 10 1.0
>14
Test
10
10
10
0
2.5
1.0
Tolerances: 10V ±500 mV and 15V ±750mV
CTRL-L1 levels is ±100mV
CTRL-L2 levels is on 1.0V ±100mV, on 2,9V ±150mV and on 5,7V ±300mV
Reference:
M30, 31, 32, 33, S2
See Ch. 13.5
M4, 5
See Ch. 13.7
