Wiring Up The Async 232↔422/530 Card; Rs-232 Connection; Twisted-Pair Connection - Black Box Async 232 422/530 Manual

4.3 Wiring Up the Async 232↔422/530 Card
Each of the rear interface cards is compatible with the Async 232↔422/530
Card and has four RJ ports. The two upper ports are either RJ-11 or RJ-45
jacks, depending on the card you select.
4.3.1 RS-232 C
ONNECTION
The RS-232 ports are always the lower ports on the interface card. The 10-pin
RJ-45s are based on the EIA/TIA-561 Standard. For specific interface pinouts,
refer to the diagrams in Appendix B.
European "CE" recommendations require that any terminal cable
connected to the Async 232↔422/530 Card must be shielded cable, and
the outer shield must be 360° bonded—at both ends—to a metal or
metalized backshell.
The Async 232↔422/530 Card is wired as a DCE (Data Communications
Equipment). Therefore, it wants to connect to a DTE (Data Termination
Equipment). If your RS-232 output device is a DTE, use a straight-through
cable to connect to the Async 232↔422/530 Card. If your RS-232 output
device is DCE, call your supplier for specific installation instructions.
4.3.2 T -P
WISTED AIR
The Async 232↔422/530 Card operates full duplex over two twisted pairs.
In all applications, the twisted-pair wire must be 26 AWG or thicker,
unconditioned, dry, metallic wire. Both shielded and unshielded wire
yield favorable results.
The Async 232↔422/530 Card can only be installed on private twisted-
pair cable. Dialup analog circuits, such as those used with a standard
Hayes ® compatible modem, are not acceptable. For more information
about acceptable wire grades, refer to Appendix A.
C
ONNECTION
NOTE
NOTE
CHAPTER 4: Installation
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