這SCXI-1308(零件號(hào):777687-08)32通道接線盒由78個(gè)螺絲端子屏蔽，可以連接到以下模塊SCXI-1102/B/C和SCXI-1100模塊。測(cè)量0至20 mA和4至20 mA過(guò)程電流源時(shí)，有32個(gè)249ω精密電阻可將電流轉(zhuǎn)換為電壓。SCXI模塊與一起使用SCXI-1308然后測(cè)量電壓，讓數(shù)據(jù)采集板獲得電壓。三十二對(duì)螺絲端子可以連接到SCXI模塊的32個(gè)差分輸入。一對(duì)端子可以連接到模塊的底盤(pán)接地引腳。三個(gè)端子與SCXI模塊輸出和AOREF引腳以及SCXI總線保護(hù)相連。剩余的終端被保存以供將來(lái)操作。

安排和操作NI SCXI 1308接線板，有幾個(gè)必需的項(xiàng)目:《安裝指南》、SCXI機(jī)箱和SCXI-1102/B/C或者SCXI-1100模塊，1號(hào)和2號(hào)十字螺絲刀，以及1/10英寸和1/2英寸平頭螺絲刀。安裝過(guò)程包括鏈接接線盒到SCXI模塊的前連接器，然后擰緊后面的底部和頂部指旋螺釘SCXI-1308確保它是安全的。

這SCXI 1308電流輸入端子板可以將電流轉(zhuǎn)換成電壓，然后測(cè)量電壓，數(shù)據(jù)采集板得到電壓。4至20 mA電流源的測(cè)量電壓將在0.996至4.98 VDC之間。這鎳SCXI-1308具有測(cè)量電流和電壓源的能力。測(cè)量電壓信號(hào)時(shí)，用戶應(yīng)移除特定輸入通道的電流環(huán)路電阻。

The SCXI-1308 (Part Number: 777687-08) 32-Channel Terminal Block is shielded with 78 screw terminals that can be joined to the following modules: the SCXI-1102/B/C and the SCXI-1100 modules. There are 32 precision resistors of 249 ? that can change current to voltage when measuring 0 to 20 mA and 4 to 20 mA process current sources. The SCXI module being used with the SCXI-1308 then measures the voltage, allowing the data acquisition board obtains the voltage. Thirty-two pairs of screw terminals can be joined to the 32 differential inputs of the SCXI modules. A single pair of terminals can be linked to the module’s chassis ground pins. Three terminals link to the SCXI module OUTPUT and AOREF pins, along with the SCXIbus guard. The remaining terminals are saved for operation in the future.

To arrange and operate the NI SCXI 1308 Terminal Block, there are several required items: the Installation Guide, an SCXI chassis, the SCXI-1102/B/C or SCXI-1100 module, No. 1 and No. 2 Philips-head screwdrivers, and 1/10 inch and ? inch flathead screwdrivers. The installation process involves linking the Terminal Block to the SCXI module’s front connector, then tightening the bottom and top thumbscrews on the rear of the SCXI-1308 to make sure it is secure.

The SCXI 1308 Current Input Terminal Block can convert current to voltage, then measure the voltage and the data acquisition board obtains the voltage. The voltage measured for a 4 to 20 mA current source will fall between 0.996 to 4.98 VDC. The NI SCXI-1308 has the capability to measure current and voltage sources. While measuring voltage signals, the user should remove the current-loop resistor for that specific input channel.