Tripp Lite SU60KX Manual page 52

2 Theory of Operation (continued)
2.21 Control Circuit for Power Module (continued)
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)
CANH-M
CANL-M
Located on NH-SYS-M board (System MCU and Control Circuit)
(g) CAN bus is the communication bus for load sharing, as well as the synchronization of signals between the system and its power modules.
Control Circuit for External Parallel
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)
Parallel Port
1
6
2
CNR14 7
3
8
4
9
5
Located on NH-SYS-M board (System MCU and Control Circuit)
(h) CAN bus is the communication bus for load sharing, and also synchronizes signals between the two systems.
(i) TOMBYP is the status of the manual bypass switch on the system frame. When the manual bypass switch turns on, MCU can detect its status
via TOMBYP_I(6) and auto-transfer to bypass the mode and its alarm.
CR12
CR14
5VSF G4
G4
7 1
CANH TXD
RR17
4
RXD
6 5
CANL Vref
UR8
G4
CANM_TX
(134)
CM 106
G1
CR1
5VSF
TOMBYP
SYNC_BUS CANH-S
7
TOINV CANH
RR5
TOBYP
6
CANH-S CANL-S CANL
CANL-S
G4
CANS_TX
(136)
CM 95
G1
CANS_RX
(137)
CM 100
G1
5VSF 5VS
UR9
RR15
8 1
7 2
6 3
5 4
5VSF SHIELD
G4
5VS
RR21
UR11
1 8
2 7
3 6
4 5
SHIELD
G1
CANM_RX
(135)
CM 109
G1
CR2
G4
5VSF
G4
UR2
RR4
8
7
1 6
TXD
5
4 5VSF
RXD
G4
5
Vref
RR7
UR5
UR1
1
2
3
G4 4
SHIELD
DR15
RR102
+12VSF
UR43
1
RR107 2
CR66
TOMBYP
CNR13
CR73
1
2
G4
RM 146
TOMBYP_I
#TOMBYP_I
(6)
CM 102
G1
70
RR14
CANM_TX
CR17
G1
RR22
CANM_RX
5VS
RR3
1
2
3
CANS_TX
4
SHIELD
CR6
5VS
G1
RR11
8
7
6
CANS_RX
5
G1
RR103
5VS
4
#TOMBYP_I
CR65
3
G1