HP 8340A Operating Manual page 40

Model 8340A
Pin
Mnemonic
I
2 Z-AXIS
3
4 LALTSEL
5
LSSP
6 +5.2V
7
8 MUTE
9 EXT TRIG
10
PEN LIFT
11
12
13
14
NEG BLANK
15
16 LRETRACE
17
LAL TEN
18
18 GND
20
21
22
LS TEP UP
23
24
8410B TRIG
25
J. LSTTL Logic Levels.
2. Control ofinputlines can be accomplished by con tact closure to ground for a logic low level and open circuit for a
logic high level.
3. Open Collector Output
Figure 2-3.
8410C INTERFACE CONNECTOR J17
seen from rear panel)
(As
14 16 16 17 18
0
000000000000
0000000000000
5
1 2 3 4
No Connection
LOW= Marker Pulse (±5V)
No Connection
Alternate Sweep (LSTIL)
LOW= Stop Fo1ward Sweep Request
+5 Volts (100 rnA
No Connection
LOW= RF Blank Request (LSTTL)
HIGH= External Trigger Sweep (LSTTL)
HIGH= Pen Lift
No Connection
No Connection
No Connection
LOW= Blanking Pulse (-5V)
No Connection
LOW= Retrace Strobe (LSTTL)
LOW= Alternate Sweep Enahle (LSTTL)
No Connection
Digital Ground/Pen Lift Return
No Connection
No Connection
LOW= Step Advance (SW. to GND (0.4V)
No Connection
HIGH= Synchronizer Trigger (LSITL)
No Connection
Vcd,
INPUTS: Low �0.8
Vdc, High
OUTPUTS: Low �0.4
8410 INTERFACE Connector SignaVPin Configuration
Scans by HB9HCA and HB9FSX
19 20 21 22 23 24 26
6
7 8 9 10 11 12 13
Description'
Max.)
Vdc.
High �2.0
Vdc.
�2.4
Installation
0
ln/Out2
Output
Output
Input/Output'.!
Output
Input
Input
Output3
Output
Output
Output
Input
Output
2-7