User`s manual

Physical Interface AW00049313000
54 Basler runner
7.7.1 Input Lines
The camera is equipped with three physical input lines designated as Input Line 1, Input Line 2, and
Input Line 3. The input lines are accessed via the 12-pin connector on the back of the camera. The
inputs are designed to accept RS-422 differential signals, but they can also be used with RS-644
low voltage differential signals or low voltage TTL signals.
7.7.1.1 Electrical Characteristics
Using the Inputs with RS-422
As shown in Figure 21 and in the I/O schematic at the beginning of this section, each input is
designed to receive an RS-422 signal. For the camera’s I/O circuitry to operate properly, you must
supply a ground as shown in Figure 21.
Fig. 21: Inputting RS-422 or RS-644 Signals
1
2
3
4
5
10
6
7
8
9
11
12
Camera
12-pin
Receptacle
I/O In 1 -
I/O In 1 +
3.3 V
120

To
FPGA
(control)
10
k
8.2
k
3.3 V
Gnd
Gnd
Your
Gnd
Your RS-422
or RS-644
Input Signal
RS-422
Transceiver
RS-422 Transceiver =
Linear Technology LTC 2855
or the equivalent
Receiver
Driver
Gnd