Basler A202k User Manual download pdf (Page 18)

Camera Interface

2-4 BASLER A202

DRAFT

2.2 Cable Information

2.2.1 Camera Link Cable

A Camera Link compatible MDR cable assembly is available from Basler as a stock item (part #

1000013041 for a 3 meter cable and part # 1000013042 for a 5 meter cable). Alternatively, you

can use the cable assembly manufactured by 3M (part # 14X26-SZLB-XXX-0LC).

The maximum allowed length for the MDR cable used with an A202

k is 10 meters.

2.2.2 Power Cable

A Hirose, 6-pin locking plug will be shipped with each camera. This plug should be used to connect

the power supply cable to the camera.

For proper EMI protection, the power supply cable attached to this plug must be a twin-cored,

shielded cable. Also, the housing of the Hirose plug must be connected to the cable shield and

the cable shield must be connected to earth ground at the power supply.

Power requirements are given in Section 2.8.

2.3 Camera Link Implementation in the A202k

The A202k uses a National Semiconductor DS90CR287 as a Camera Link transmitter. For a

Camera Link receiver, we recommend that you use the National Semiconductor DS90CR288, the

National Semiconductor DS90CR288A or an equivalent. Detailed data sheets for these

components are available at the National Semiconductor web site (www.national.com). The data

sheets contain all of the information that you need to implement Camera Link, including

application notes.

The A202

k uses a National Semiconductor DS90LV048A differential line receiver to receive the

RS-644 camera control input signals and the serial communication input signal defined in the

Camera Link specification. A DS90LV047A differential line transmitter is used to transmit the serial

communication output signal defined in the specification. Detailed spec sheets for these devices

are available at the National Semiconductor web site (www.national.com).

The schematic in Figure 2-3 shows the interface for A202

k and a typical implementation for the

frame grabber interface.

In order to access the Integrate Enabled signal, you must use the Basler stock cable

(see Sect. 2.5.5).

Note that the timing used for sampling the data at the Camera Link receiver in the

frame grabber varies from device to device. On some receivers, TTL data must be

sampled on the rising edge of the receive clock, and on others, it must be sampled

on the falling edge. Also, some devices are available which allow you to select either

rising edge or falling edge sampling. Please consult the data sheet for the receiver

that you are using for specific timing information.

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Basler A202k User Manual Page 18