4 HCU Control Module
- 88 -
Pin No. Name Function Specication
XCOMM: InoLink RS485 communication terminal
1 SHIELD
RS485 bus, 5 V standard level
Bus resistor: 124 Ω
Max. communication speed: 5 Mbps
Max. number of nodes: 32 (no repeater)
Max. transmission distance: 1200 m
4-core shielded twisted pair
cable
Cross sectional area: 0.5–2.5
mm
2
When used for Inolink, the
maximum number of nodes
is 16, the maximum speed is
5 Mbps, and the maximum
cable length is 40 m.
2 C485+
3 C485-
4 CGND
Jumpers J10 and J12: RS485 termination resistor selection (J10 and J12 must be in the same
status.)
Connect the termination resistor by shorting 1 and 2.
Disconnect the termination resistor by shorting 2 and 3.
XRO1: output terminal of relay 1
1 RO1_NO
Output type: passive NO and NC contacts
Contact parameters: 250 VAC/30 VDC, 2 A
Single-core cable
Cross sectional area: 0.5–2.5
mm
2
2
RO1_
COM
3 RO1_NC
XRO2: output terminal of relay 2
1 RO2_NO
Output type: passive NO and NC contacts
Contact parameters: 250 VAC/30 VDC, 2 A
Single-core cable
Cross sectional area: 0.5–2.5
mm
2
2
RO2_
COM
3 RO2_NC
XRO3: output terminal of relay 3
1 RO3_NO
Output type: passive NO and NC contacts
Contact parameters: 250 VAC/30 VDC, 2 A
Single-core cable
Cross sectional area: 0.5–2.5
mm
2
2
RO3_
COM
3 RO3_NC
X11, X12: PC or SOP-20-880 RS485 communication terminal
1, 2, 7 NC
RS485 bus, 5 V standard level
Bus resistor: 124 Ω
Max. communication speed: 4 Mbps
Max. number of nodes: 32 (no repeater)
Max. transmission distance: 1200 m
Standard network cable
3, 8 GND3
4 A
5 B
6 15V3 15V3: 15 V ± 15%
Jumper J12, J15: bus resistor selection, J12 and J15 must select the same status
Connect the termination resistor by shorting 1 and 2.