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Consult form no. 39-00003, Q7055C Honeywell Meter Point
Connect MPC-Model M1/Model M2 Checkout & Test for
additional information on field bus wiring.
CABLES AND CONNECTORS
DB9F Null Modem Connector
Fig. 5 illustrates a serial connector for the field bus. Fig. 6
shows how to configure a Null Modem Cable DB9F.
Fig. 6. Serial connector (female connector is numbered as
RxD
2
TxD
3
DTR
4
DCD
1
DSR
6
GND
5
RTS
7
CTS
8
RI
9
Fig. 7. Signal connections for DB9F Null Modem Cable.
1 = DCD
2 = RxD
3 = TxD
4 = DTR
5 = GROUND
9 = RI
8 = CTS
7 = RTS
6 = DSR
M19592
shown).
RxD
2
TxD
3
DSR
6
DCD
1
DTR
4
GND
5
RTS
7
CTS
8
RI
9
M19594
Q7055C HONEYWELL METER POINT CONNECT
Ethernet Connection
See Fig. 7 for MPC Ethernet connection.
Fig. 8. MPC Ethernet connector.
RJ-45 LAN Connector
The MPC provides a standard RJ-45 connector for 10/
100BaseT Ethernet LAN connection. This section describes
the pin layout for the RJ-45 connector. Most Ethernet local
area networks use twisted pair wiring. 10/100BaseT networks
are physically laid out in a star topology, where each piece of
equipment on the network is connected to a central switch.
The wiring is connected to devices using a plug that
resembles a phone jack called RJ-45. See Table 2 on page 5
for details.
Connect MPC to Switch
To connect a MPC device to a LAN via an Ethernet Switch, the
required cable should be configured as shown in Fig. 8.
Tx +
1
Tx -
2
Rx +
3
4
5
Rx -
6
7
8
Fig. 9. Straight-through pinning for MPC to Ethernet
Switch connections.
5
8-PIN MODULAR
CONNECTOR RJ-45
M22399
Tx +
1
Tx -
2
Rx +
3
4
5
Rx -
6
7
8
M19596
39-00002
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