A SERVICE OF

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62
PRELIMINARY
2 Theory of Operation (continued)
2.15 Communication Circuit for Slots
Located on NH-SYS-R board (Circuit for RS232, Output Dry Contact, Parallel Port, Connector to connect with each Power Module,
Circuit for 2 Slots)
Located on NH-SYS-M board (System MCU and Control Circuit)
G4
RR4 3
5VS
G1
#RX_232
2
3
6
5
8
7
1 4
UR20
CR2 7
G1 5VS
RR2 6
5VS
-12VSF
RR3 1
+12VSF
2
3
6
5
8
7
1 4
UR15
CR2 1
G4+12VSF
RR3 8
+12VSF
RR4 4
RR4 7
D
G
S
QR5
232_RX
232_TX
RR3 7
D
G
S
QR4
RR3 3
G1
#TX_232
RR118
1
6
2
7
3
8
4
9
5
CNR6
G4
RS232 Port
232_TX
232_RX
G4
RR6 7
5VS
G1
#RX_Slot1
2
3
6
5
8
7
1 4
UR29
CR4 2
G1 5VS
RR5 1
5VS
-12VSF
RR5 5
+12VSF
2
3
6
5
8
7
1 4
UR25
CR3 6
G4+12VSF
+12VSF
RR6 9
RR7 3
D
G
S
QR8
SLOT1_RX
SLOT1_TX
RR6 5
D
G
S
QR6
RR5 8
G1
#TX_Slot1
G4
RR8 7
5VS
G1
#RX_Slot2
2
3
6
5
8
7
1 4
UR38
CR5 9
G1 5VS
RR7 6
5VS
-12VSF
RR7 7
+12VSF
2
3
6
5
8
7
1 4
UR34
CR5 2
G4+12VSF
+12VSF
RR9 3
RR9 5
D
G
S
QR10
SLOT2_RX
SLOT2_TX
RR8 4
D
G
S
QR9
RR8 0
G1
#TX_Slot2
RR1 2 1
RR1 2 3
RR6 6
RR8 5
1 2
3 4
5 6
7 8
9 10
CN R2
To Slot 1
SLOT1 _RX
G4
SLOT1 _TX
+12VSF
1 2
3 4
5 6
7 8
9 10
CN R7
To Slot 2
SLOT2 _RX
G4
SLOT2 _TX
+12VSF
CR3
CR5
G4
CR1 1
CR1 3
G4
(a) System MCU communicates with Slot 1 via TX_Slot1 (117) and RX_Slot1 (118).
(b) System MCU communicates with Slot2 via TX_Slot2 (122) and RX_Slot2 (121).
(121)
(122)
(118)
(117)
RM115
CM6 6
G1
#TX_Slot1
RM120
CM7 1
G1
#RX_Slot1
RM1 2 5
CM8 4
G1
#TX_Slot2
RM1 3 1
CM8 9
G1
#RX_Slot2
TX_Slot1
RX_Slot1
TX_Slot2
RX_Slot 2