Figure 2-15 Rs-422/485 Communications Option Connections; Figure 2-16 Ethernet Communications Option Connections - Honeywell UDC2500 Product Manual

16 SHLD
17 D+ (B)
18 D– (A)
1 Do not run the communications lines in the same conduit as AC power.
2 Use shielded twisted pair cables (Belden 9271 Twinax or equivalent).

Figure 2-15 RS-422/485 Communications Option Connections

Figure 2-16 Ethernet Communications Option Connections

Figure 2-16 and Table 2-7 shows how to connect 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.
4/07
1
SHLD
D+
D–
TO OTHER
COMMUNICATION
CONTROLLERS
D– D+
120 OHMS ON LAST LEG
SHLD SHLD SHLD SHLD
14 SHLD 14 SHLD 14 SHLD 14 SHLD
15 RXD + 15 RXD +
15 RXD+ 15 RXD+
16 RXD – 16 RXD –
16 RXD - 16 RXD -
17 TXD + 17 TXD + 17 TXD+ 17 TXD+
18 TXD – 18 TXD –
18 TXD - 18 TXD -
1 Do not run the communications lines in the same conduit as AC 1 Do not run the communications lines in the same conduit as AC 1 Do not run the communications lines in the same conduit as AC 1 Do not run the communications lines in the same conduit as AC
power. Correct connections may require the use of an Ethernet power. Correct connections may require the use of an Ethernet power. Correct connections may require the use of an Ethernet power. Correct connections may require the use of an Ethernet
cross-over cable. cross-over cable. cross-over cable. cross-over cable.
2 Use Shielded twisted -pair, Category 5 (STP CAT5) Ethernet cable. 2 Use Shielded twisted -pair, Category 5 (STP CAT5) Ethernet cable. 2 Use Shielded twisted -pair, Category 5 (STP CAT5) Ethernet cable. 2 Use Shielded twisted -pair, Category 5 (STP CAT5) Ethernet cable.
3 Use Switch rather than Hub to maximize performance. 3 Use Switch rather than Hub to maximize performance. 3 Use Switch rather than Hub to maximize performance. 3 Use Switch rather than Hub to maximize performance.
UDC2500 Universal Digital Controller Product Manual
COMMUNICATION MASTER
D+ (B) SHLD D– (A)
2
120 OHMS
Connect shield
to ground at one
end only.
COMMUNIC ATION MASTER COMMUNIC ATION MASTER COMMUNIC ATION MASTER COMMUNIC ATION MASTER
3 3 3 3 3 3 3 3 3
OR SWITCH OR SWITCH OR SWITCH OR SWITCH
RXD+ TXD– RXD+ TXD– TXD+ RXD– RXD + RXD- TXD+ TXD- TXD+ RXD– RXD + RXD- TXD+ TXD-
1 1 1 1
2 2 2 2
Installation
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