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  TM 11-6625-3060-10
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Data Outputs
Data outputs from pins of the edge connector are listed in the chart below.
Pin
True
54/74
No.
Function
Comment
Logic Level
Unit Load
22
mV MODE
Indicates voltage display
1
1
4
DC ANALOG
10 V for full scale of "1" ranges; 0.5 V for "3"
None
None
ranges.
21
OVER RANGE
Indicates that ME-526A/USM range should be
0
1
increased
20
UNDER RANGE
Indicates that ME-526A/USM range
0
1
should be decreased.
2
-dBm
Not used.
W
ENCODE COMPL
Indicates completion of encode cycle; data
1
1
output may be read.
17
Indicates range selected in binary code;
1
1
4
RANGE
}
18
0-1 mV range, 7 = 3000 mV range.
2
CODE
19
1
F
8
BCD
Data in serial form, continuously scanned, left
1
1
}
E
41
ENCODE
(MSD) to right, 500 us digit, 2 ms scan
1
1
D
2
DATA
1
1
C
1
DATA
1
1
H
4
; Indicates digit to which BCD data applies
1
1
}
J
3
Digit
4 = MSD(left-most).
1
1
K
2
Select
1
1
L
1
1
1
·
Output Characteristics
TTL
Logic
Voltage
Current per
Series
Level
Level
Unit Load
0
less than 0.7 V
1.6 mA
Standard
Power 52/74
1
2.4 to 5.25 V *
- 40 uA
*The "-" current indicates current sourced by output.
2-19/2-20 (blank
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