Racal Instruments 9916 - Page 85

TABLE 1.
FL YING LEAD CONNECTIONS
Pin No.
Pin No.
---
l.
Not Connected A
OV
2.
+ 5V (nominal)
B
OVERFLOW
3.
KEYWAY
C
KEYWAY
4.
'4
BeD DATA
D 1
BeD DATA
5.
8
E 2
6.
COUNTER HOLD
F
Multiplex Sync (Note 2)
7.
COUNTER RESET
H
MAIN GATE
8.
DIGIT 10
8
SELECT
J
Not Connected
9.
Not Connected
K Z
)
10.
Not Connected L
y
)
TIME BASE
11.
Not Connected
M X
)
12.
Ro
N
Not Connected
13.
HOLD/RESET
P
Not Connected
14.
See NOTE R Not Connected
NOTE 1.
NOTE 2.
In option 01 units with serial numbers after 1389, pin 14 of
the flying lead connection is connected within the interface
unit to pin 4J of the 50 way connector,' This permits o' remote
indication when instruments are in the divide by ten prescale
mode.
~
The multiplex sync. signol on pin F is 10 KHz, except with
9911 and 9919 instruments when it is 5 KHz.
Section 4 : 99 Series Appendi x
Page App, 8