NOTE
Connection to Port 2 can also be made using the
9-pin (DB9) connector P7.
Pin 2 =
TXD =
B19
Pin 3 =
RXD =
B20
Pin 5 =
COM =
A19
WARNING
Do not plug or unplug the connector unless the
area is known to be non-hazardous.
A20 = (T+) Not used.
A21 = Port 1 common (COM).
Connects to “common” of the
other device.
B21 = Port 1 transmit (TXD).
Connects to “receive” of the
other device.
B22 = Port 1 receive (RXD).
Connects to “transmit” of the
other device.
A22 = (R+) Not used.
Terminals 23 to 25 —LON/SLC signaling circuit
terminals, with separate
shield connections.
The LON/SLC is polarity
sensitive due to ground fault
monitoring.
A23 = shield connection for COM 1
A24 = B side of signaling circuit for
COM 1
A25 = A side of signaling circuit for
COM 1
B23 = shield connection for COM 2
B24 = B side of signaling circuit for
COM 2
B25 = A side of signaling circuit for
COM 2
NOTE
B23 is connected directly to chassis ground. A23
is connected to chassis ground through a filter
network.
IMPORTANT
When installing the three modules in the LCU rack,
the Logic Controller must be in the left hand
position, the Gateway in the center position, and
the LON Isolator in the right hand position.
VII-6
Содержание Eagle Quantum 95-8470-05
Страница 116: ...Figure A1 A 10...
Страница 122: ...Figure B1 B 6...
Страница 125: ...APPENDIX D D 1 95 8470...
Страница 128: ...LON is a registered trademark of Echelon Corporation Modbus is a registered trademark of Modicon Inc...