Page 72 of 76 Interface
3.3 Handler Interface
There is an available Handler interface for the 1855 instrument as illustrated in Figure 3-4. [The
IEEE-488 and HANDLER interfaces come together as an optional accessory]. Connection to the
Handler interface is through the blue 24-pin connector labeled HANDLER on the rear panel of
the 1855 instrument.
1855 HANDLER Interface PIN Configuration: Rear Panel View
12 67891011
13
12534
15 1419 18 17 162024 23 2122
1
12
11
10
9
8
7
6
5
4
3
2
24
23
22
21
20
19
18
17
16
15
14
13
N.C.
FAIL HI
/FAIL
N.C.
/PASS
/CHARGE
/EXT
/TEST
N.C.
COM
GND
GND
VINT
N.C.
VEXT
1855 HANDLER Interface: PIN Designation
N.C.
/TEST
N.C.
EOT
/HI
/LO
ACQ
/FAIL_CHARGE
GND
Figure 3-4: Handler Interface Pin Configuration
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