Karel MS224 Installation & Maintenance Guide
Edition 3.2
11
CPU224 is the brain of the system consisting of the microprocessor, utility,
switching and DTMF circuitries. See Figure A-8 for the location of these circuitries
and Figure A-7 for the operational flow diagram of CPU224.
MS224 CPUKON is the interface between the accessories and the system, it
includes the connectors used to attach the accessories to the system.
CPU224 generates the address and data signals for the MS224 EX1 and MS224
EX2 Expansion Modules and gives them to the BPL224 Backplane, via the 96-pin
connector on BPL224. Then, the signals travel through the BPL224 Backplane to
the MS224 EX1 and MS224 EX2 Expansion Modules. The pin-out of the CPU224
– BPL224 connector on BPL224 Backplane is as follows:
CPU224 – BPL224 Connector
Pin
Signal Pin
Signal Pin
Signal Pin
Signal
1
+ 1 VDC
25
X31
49
X9
73
-
2
- 5 VDC
26
X21
50
X7
74
-
3
A9 27
X18 51 GNDCPU 75
-
4
A10 28
X16 52
X13 76
-
5
CONT1 29 +
5VDC 53
X5
77
-
6
A11B 30
-
54
X2
78
VAG
7
CONT2 31
GND 55
X27 79
-
8
B
32 -24
VDC 56
X24 80 +5
VDC
9
DA1
33
+ 12 VDC
57
X22
81
-
10
DA2 34 -5
VDC 58
X28 82
-
11
A
35
A0
59
X19 83 GNDCPU
12
C
36
A1
60
X17 84
X15
13
111A 37
A2
61 +
5VDC 85
X14
14
VAG 38 CONT3 62
-
86
X3
15 X10
39 DATA
63 GND
87
X0
16
+ 5 VCPU
40
RD
64
- 24VDC
88
X25
17
X8 41
WR 65
-
89
X29
18
X6 42
A12 66 -
5VDC 90
X30
19 GNDCPU
43
DA0 67 SERISDN
91
X20
20
X12 44
D
68
-
92
-
21
X4 45
111B 69
-
83 +5
VDC
22
X1 46
VAG 70
-
94
-
23
X26 47
X11 71
-
95
GND
24
X23 48 +
5VCPU 72
-
96 -24
VDC
Summary of Contents for MS224
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Page 52: ...Karel MS224 Installation Maintenance Guide Edition 3 2 49 Figure B 4 Figure B 5...