DS1100
2
2.3 ELECTRICAL
CONNECTIONS
The DS1100 cable is equipped with a 25-pin female D-sub connector for connection
with the power supply and input/output signals:
CAUTION
Do not connect GND and SGND to different (external) ground
references. GND and SGND are internally connected through
filtering circuitry which can be permanently damaged if subjected to
voltage drops over 0.8 Vdc.
Figure 5 – 25-pin Female D-sub Connector
25-pin D-sub connector pinout
Pin Name
Function
9,13
VS
Power supply input v
25
GND
Power supply input voltage -
1 *
CHASSIS
Chassis Ground
2, 21
TXAUX
TX RS232 Aux. Interface
3, 20
RXAUX
RX RS232 Aux. Interface
4
RTX485-
RTX- RS485 Main Interface
5
RTX+ RS485 Main Interface
7 SGND
Signal
Ground
8
OUT1 +
Output 1 +
11
OUT2 +
Output 2 +
18
IN1 -
Input 1 -
19
EXT TRIG-
External trigger -
12, 22
GND
Input/Output reference
23, 24
N.U.
Not Used
6, 10, 14, 15, 16, 17
NC
Not Connected
* Pins 1 and 25 are connected together internally.
8
