5
1
OUTLINE
5
OUTLINE
Chapter
1
3. Option space
Install an option to expand the functions of the M252B. Either BCD input or RS-232C interface can
be installed optionally.
4. Frame ground (F.G.)
F.G. of the AC input terminal. (There is continuity between the casing and F.G. terminal.)
5. Protective ground
This is a protective ground terminal. Make sure to ground the protective ground terminal to prevent
shock hazards and electrostatic hazards. (The casing and protective ground terminal are in
conduction.)
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Input Terminal Block
Name
Description
(1)
COM
Common terminal of the external input terminal block.
(2)
FEED
Feeds when short-circuited with the COM terminal.
(3)
Prints when short-circuited with the COM terminal.
(4)
ST
Prints sub totals when short-circuited with the COM terminal.
(5)
GT
Prints grand totals when short-circuited with the COM terminal.
(6) (7)
SI/F Ach
Input terminal for the SI/F (Ach).
(8) (9)
SI/F Bch
Input terminal for the SI/F (Bch).
(1) COM
(2) FEED
(3) PRINT
(4) ST
(5) GT
(6)(7) SI/F Ach
(8)(9) SI/F Bch
Point
PRINT/FEED/ST/GT
OFF
ON
MIN.30ms
MIN.60ms
The following shows a timing diagram of the external input terminals on the panel.
Summary of Contents for M525B
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