Figure 2-22 Ethernet Communications Option Without Adaptor Board - Honeywell UDC3500 Product Manual

straight-through cable to connect the controller to a MDI Compliant Hub or Switch.
Alternatively, you may use a crossover cable to connect your controller directly to a PC,
which is useful for commissioning purposes. Use only Category 5 (STP CAT5) shielded
twisted-pair Ethernet cables. For strain relief, secure your Ethernet cable to the controller
with the tie wraps included in the kit using the holes in the bottom controller flange.
4 SHLD 4 SHLD

Figure 2-22 Ethernet Communications Option without Adaptor Board

If you would rather wire your UDC to your Ethernet connection without using the
Ethernet Adaptor Board, then Figure 2-22 and Table 2-8 show the connections for a
UDC to a MDI Compliant Hub or Switch utilizing a straight-through cable or for
connecting a UDC to a PC utilizing a crossover cable.
3/07
COMMUNICATION MASTER COMMUNICATION MASTER
SHLD SHLD
24 RXD + 24 RXD +
25 RXD - 25 RXD -
26 TXD + 26 TXD +
27 TXD - 27 TXD -
Do not run the communications lines in the same conduit as AC Do not run the communications lines in the same conduit as AC
1 1
power. Direct connection to a PC may require the use of an power. Direct connection to a PC may require the use of an
Ethernet cross-over cable. Ethernet cross-over cable.
2 2 Use Shielded twisted-pair, Category 5 (STP CAT5) Ethernet cable. Use Shielded twisted-pair, Category 5 (STP CAT5) Ethernet cable.
Maximum Distance 330 Ft. Maximum Distance 330 Ft.
Use Switch rather than Hub to maximize performance. Use Switch rather than Hub to maximize performance.
3 3
4 Ethernet Communications is mutually exclusive with the Second Current 4 Ethernet Communications is mutually exclusive with the Second Current 4 Ethernet Communications is mutually exclusive with the Second Current
Output. Output. Output.
UDC3500 Universal Digital Controller Product Manual
3 3
TXD - TXD - TXD + TXD +
RXD - RXD - RXD + RXD +
1 1
2 2
Installation
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