Timer Feature Physical Characteristics - IBM Series 1 User Manual

TIMER FEATURE PHYSICAL CHARACTERISTICS
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Assignments
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The external interface is available at the top of the timer
card on a 2x8 polarized top-card connector (Tee). See
Figure 3-3. The pin assignments are:
A01
102
A03
104
A05
106
A07
A08
B01
B02
B03
B04
B05
B06
B07
B08
Timer 0 clock
Timer 0 external gate
Timer 0 run state
Timer 0 external gate enable
Timer 0 customer signal ground
Not used
Not used
Frame ground strap
Not used
Not used (polarizing pin)
Not used
Timer 1 customer signal ground
Timer 1 external gate enable
Timer 1 run state
Timer 1 external gate
Timer 1 clock
Figure 3-3. Timer card and cable connector
User-supp lied
2X8
connector
Timer card
A
B
0
0
8
0 0
7
0 0
6
0
0
5
0
0
4
0 0
3
0 2
0
0
Pin view
Timer Feature 3-13