Extension Connector - TiePie Handyscope HS3 User Manual

7.3

Extension Connector

To connect to the Handyscope HS3 a 25 pin female D-sub connector is available,
containing the following signals:
Pin Description
1 Ground
2 Reserved
3 External Power in DC
4 Ground
5 +5V out, 10 mA max.
6 Ext. sampling clock in (TTL)
7 Ground
8 Ext. trigger in (TTL)
9 Data OK out (TTL)
10 Ground
11 Trigger out (TTL)
12 Reserved
13 Ext. sampling clock out (TTL)
All TTL signals are 3.3 V TTL signals which are 5 V tolerant, so they can be connected
to 5 V TTL systems.
For instruments with serial number 14266 and higher, pins 9, 11, 12, 13 are open
collector outputs. Connect a pull-up resistor of 1 kOhm to pin 5 when using one
of these signals. For older instruments, the outputs are standard TTL outputs and
no pull-up is required.
Figure 7.4: Extension connector
Pin
14
15
16
17
18
19
20
21
22
23
24
25
Table 7.2: Pin description Extension connector
Description
Ground
Ground
Reserved
Ground
Reserved
Reserved
Reserved
Generator Ext Trig in (TTL)
Ground
2
I C SDA
2
I C SCL
Ground
21
Rear panel