HONEYWELL TK-FPDXX2控制系統(tǒng),TK-FPDXX2配置說明
輸入/輸出總線擴(kuò)展電纜（IC693CBL300、301、312、313、314）稱為“Y形電纜”，具有一端和雙頭（一公一母）的單陽25針D連接器另一端的25針D連接器，如圖（A）所示。50英尺（15m）（IC693CBL302）電纜在CPU基板端有一個陽連接器和一個擴(kuò)展基板端部的端接公連接器。3英尺電纜（IC693CBL300）也可以用作Y形適配器電纜，以簡化構(gòu)建自定義長度電纜（見本章下文“電纜應(yīng)用建議”一節(jié)）。
HONEYWELL TK-FPDXX2控制系統(tǒng)電纜的功能輸入/輸出總線擴(kuò)展電纜用于將輸入/輸出總線擴(kuò)展到擴(kuò)展或遠(yuǎn)程當(dāng)需要額外的輸入/輸出插槽或基板需要與CPU基板保持一定距離。預(yù)接線輸入/輸出總線擴(kuò)展電纜可用于連接擴(kuò)展或遠(yuǎn)程基板。如果標(biāo)準(zhǔn)電纜中沒有所需的電纜長度，則必須使用自定義電纜已建（有關(guān)詳細(xì)信息，請參閱“構(gòu)建自定義長度輸入/輸出總線擴(kuò)展電纜”一節(jié)說明）。連接電纜將單個陽接頭連接到右側(cè)的25針陰接頭CPU基板。將電纜雙連接器端的公連接器連接到25針第一個擴(kuò)展基板上的陰連接器。將未使用的25針內(nèi)螺紋連接器連接到電纜的雙連接器端連接到第二條輸入/輸出總線擴(kuò)展電纜的單個公連接器以繼續(xù)輸入/輸出總線擴(kuò)展鏈，或連接到輸入/輸出總線終端插頭（如果這是最后一根電纜）在擴(kuò)展鏈中。
I/O bus expansion cables (IC693CBL300, 301, 312, 313, 314), called “Wye cables,” have a
single male 25-pin D connector on one end and a two-headed (one male, one female)
25-pin D connector on the other end as shown in (A) of the figure. The 50 foot (15m)
(IC693CBL302) cable has a single male connector on the CPU baseplate end and a single
terminated male connector on the expansion baseplate end. The 3 foot cable
(IC693CBL300) can also be used as a WYE adapter cable to simplify building custom length
cables (see the section “Cable Application Suggestions” later in this Chapter).Function of Cables
The I/O Bus expansion cables are used to extend the I/O bus to expansion or remote
baseplates in a Series 90-30 I/O system when additional I/O slots are needed or
baseplates are required some distance from the CPU baseplate. The prewired I/O bus
expansion cables can be used for connecting either expansion or remote baseplates.
Where required cable length is not available in a standard cable, a custom cable must be
built (see the section “Building Custom Length I/O Bus Expansion Cables” for detailed
instructions).Connecting the Cables
Connect the single male connector to the 25-pin female connector on the right side
of the CPU baseplate.
Connect the male connector on the dual connector end of the cable to the 25-pin
female connector on the first expansion baseplate.
Connect the unused 25-pin female connector on the dual connector end of the cable
to either the single male connector of a second I/O bus expansion cable to continue
the I/O bus expansion chain, or to an I/O bus Terminator plug if this is the last cable
in the expansion chain.
