Installation notes
- The AI/AO Mass Connection Board provides an interface to the simplex or redundant AI 16-channel 4-20 mA HART Plus card used with the simplex or redundant Analog Input 48-Pin Mass Terminal Block; the simplex or redundant AO 16-channel 4-20 mA HART Plus card used with the simplex or redundant Analog Output 48-Pin Mass Terminal Block; two AI 8-channel 4-20 mA HART cards used with the 16-Pin Mass Terminal Block; or two AO 8-channel 4-20 mA HART cards used with the 16-Pin Mass Terminal Block; or one AI and one AO 8-channel 4-20 mA HART card used with the 16-Pin Mass Terminal Block.
- One AI/AO Mass Connection Board provides the interface to all 16 channels on the simplex or redundant AI 16-channel 4-20 mA HART Plus card, on the simplex or redundant AO 16-channel 4-20 mA HART Plus card, on two AI 8-channel 4-20 mA HART cards, or on two AO 8-channel 4-20 mA HART cards, or on one AI and one AO 8-channel 4-20 mA HART card used with the 16-Pin Mass Terminal Block.
- Two 24-pin ribbon cables connect between the AI/AO Mass Connection Board and the simplex or redundant Analog Input 48-Pin Mass Terminal Block or the simplex or redundant Analog Output 48-Pin Mass Terminal Block. Two 16-pin ribbon cables connect between the AI/AO Mass Connection Board and two 16-Pin Mass Terminal Blocks.
- Three rows of screw terminals provide two- and four-wire connections for the AI channels as well as two-wire connections for the AO channels. The rows of screw terminals are numbered, top to bottom, n+, n, and n-, where n = 1-16 for each row.
- When using the AI/AO Mass Connection Board with a supported AI Plus card and a Mass Terminal Block, connect 2-wire devices between n+ and n and 4-wire devices between n and n-. When using any other supported AI or AO card and a Mass Terminal Block, connect devices between n+ and n.
- Each channel has a Loop Disconnect pull switch. You can connect an ammeter to the 2 mm test points of a channel, then pull the pull switch to measure the current across the channel without interrupting operation.
