Q7055C BUILDING NETWORK ADAPTERS BNA-1C/2CS
95-7735
6
Ethernet Connection
See Fig. 8 for BNA Ethernet connection.
Fig. 8. BNA Ethernet connector.
RJ-45 LAN Connector
The BNA 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 hub. The
wiring is connected to devices using a plug that resembles a
phone jack called RJ-45. See Table 2 for RJ-45 signals.
Table 2. RJ-45 Signals.
Connect BNA to HUB
To connect a BNA device to a LAN via an Ethernet Hub, the
required cable should be configured as shown in Fig. 9.
Fig. 9. Straight-through pinning for BNA to EthernetHub
connections.
Connect BNA to Workstation
When a BNA needs a direct connection to a workstation
without using an Ethernet Hub, a crossover cable is required.
Fig.10 shows how the different signals should be connected.
Fig. 10. Crossover pinning for BNA to workstation,
direct connections.
COMMISSIONING
Finish the installation by commissioning the BNA in
accordance with form no. 74-4047, Q7055C Building Network
Adapter BNA-1C/2CS Checkout & Test.
Pin Number
Signal Name
1
Transmit (TX) +
2
Transmit (TX)
3
Receive (RX) +
4
Reserved
5
Reserved
6
Receive (RX)
7
Reserved
8
Reserved
M22399
8-PIN MODULAR
CONNECTOR RJ-45
Rx -
Rx +
Tx +
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Tx -
Rx -
M19596
Rx +
Tx +
Tx -
Rx -
Rx +
Tx +
1
2
3
6
4
5
7
8
1
2
3
6
4
5
7
8
Tx -
Rx -
M19597
Rx +
Tx +
Tx -
