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88
Power Supply Wiring
Section 3-5
Before connecting the power supply, first connect a DCN4-TB4 Open Type
Connector to the communications connector to convert it to a screw terminal
block.
When using a Repeater Unit, supply power through the BS+ and BS
−
termi-
nals of the Repeater Unit's PORT1 connector.
Round Cable II or Flat
Cable I/II
Connect a 24-VDC power supply to the Master Unit's communications power
supply connector (BS+ and BS
−
). This provides communications power to
each Slave Unit and Repeater Unit connected by round cable II or Flat Cable
I/II. Connect only one communications power supply for the trunk line. The
cable between the communications power supply and the communications
power supply connector must be no longer than 3 m.
When Repeater Units are used, communications power to sub-trunk lines is
supplied by the downstream port communications power supply connectors
(BS+ and BS
−
) of the Repeater Units. The cable between the communica-
tions power supply and the communications power supply connector must be
no longer than 3 m.
Connect an Open Type Connector here.
Note:
When using the UL standards, please
install a unit to restrict current between
the external power supply and this unit to
4 A. (Only communications power supply)
BS+
BS
−
24-VDC
communica-
tions power
supply
Overcurrent
protection (See note.)
(current limit: 4 A)
Connect an Open Type Connector here.
Note:
When using the UL standards, please
install a unit to restrict current between
the external power supply and this unit to
4 A. (Only communications power supply)
24-VDC
communica-
tions power
supply
BS+
BS
−
Overcurrent
protection (See note.)
(current limit: 4 A)
Communications
power supply
connector
3 m max.
Master Unit
Communi-
cations
power
supply
Communications
power supply,
24 VDC
Communications
connector
Round cable II or
Flat Cable I/II
Slave Unit
Terminating Resistor
Slave Unit
Slave Unit
Overcurrent
protection (See note.)
(current limit: 4 A)
Note:
When using the UL standards, please install a
unit to restrict current between the external power
supply and this unit to 4 A. (Only communications
power supply)
Summary of Contents for CRT1 - 10-2009
Page 1: ...Cat No W457 E1 07 CompoNet Slave Units and Repeater Unit CRT1 Series OPERATION MANUAL...
Page 2: ......
Page 3: ...CRT1 Series CompoNet Slave Units and Repeater Unit Operation Manual Revised October 2009...
Page 4: ...iv...
Page 6: ...vi...
Page 10: ...x...
Page 16: ...xvi...
Page 24: ...xxiv Conformance to EC Directives 6...
Page 386: ...362 Units with Connectors Section 6 7...
Page 414: ...390 Temperature Input Units Section 7 5...
Page 430: ...406 Expansion Unit Specifications Section 8 2...
Page 494: ...470 Bit Slave Units with Compact Connectors Section 9 5...
Page 501: ...477 Repeater Unit Section 10 2 Dimensions 42 3 50 3 1 27 5 95 mm...
Page 502: ...478 Repeater Unit Section 10 2...
Page 508: ...484 CX Integrator Section 11 1...
Page 509: ...485 CX Integrator Section 11 1...
Page 602: ...578 Temperature Input Unit Functions Section 11 6...
Page 614: ...590 Device Maintenance Section 12 3...
Page 664: ...640 I O Power Supply Current Appendix E...
Page 672: ...648 Index...
Page 674: ...650 Revision History...