Maxtor CLE12048A Application Note

Application Note:

Interfacing non-standard cameras to Matrox Pulsar

DALSA CL-E1-2048A May 29, 1996

Camera
Interface
Overview

Camera
Interface
Details

• 2048 x 1 x 8-bit

• Digital video output (RS-422)

• External sync required

• 2 modes of operation: fixed line scan rate, variable line scan rate

Mode 1: Fixed line scan rate

Video

Dalsa

CL-E1

• 2048 x 1 x 8-bit

• Digital video output (RS-422)

• DCF configured for 480 lines per virtual frame

• Line scan rate is fixed and is determined by frequency of hsync signal

• Exposure time is inversely proportional to line scan rate

• Continuous video

• Matrox Pulsar sending RS-422 hsync (EXSYNC) and RS-422 pixel clock (MCLK) signals

EXSYNC

MCLK

STROBE

Matrox Pulsar

(with PULSAR/DIG/MOD)

to camera; the hsync signal initiates line readout

• Matrox Pulsar receiving RS-422 pixel clock (STROBE @ 7.159Mhz) signal from camera

• DCF used: CLE1_L.DCF

Mode 2: Variable line scan rate

Video

EXSYNC

Dalsa

CL-E1

MCLK

STROBE

LVAL

Matrox Pulsar

(with PULSAR/DIG/MOD)

optional LCD

electronic

• 2048 x 1 x 8-bit

• Digital video output (RS-422)

• DCF configured for 480 lines per virtual frame

• Line scan rate is variable and is controlled by external trigger signal

• Exposure time is inversely proportional to line scan rate unless an LCD electronic shutter is

shutter

SHUTTER

TTL external trigger

used

• Matrox Pulsar receiving TTL external trigger

• Matrox Pulsar sending RS-422 EXPOSURE2 (EXSYNC) and RS-422 reference clock

(MCLK) signals to camera; the EXPOSURE2 signal initiates line readout

• Matrox Pulsar receiving RS-422 pixel clock (STROBE @ 7.159MHz) and RS-422 vsync

(LVAL) signals from camera

• With optional LCD electronic shutter: Matrox Pulsar sending RS-422 EXPOSURE1 signal

to camera; the EXPOSURE1 signal controls the optional LCD electronic shutter and
therefore the exposure time

• DCF used: CLE1_LS.DCF

• In addition to the DCF, PSG FPGA version 3.01 or newer is required; if this version is not

on your release of the MIL driver for Pulsar, the newest version can be found on the BBS or
at the FTP site

Application Note:

Interfacing non-standard cameras to Matrox Pulsar

DALSA CL-E1-2048A May 29, 1996

Cabling
Requirements

Mode 1: Fixed line scan rate

• PULSAR/DIG/MOD required for digital data, syncs and control signals in RS-422 format

• The connections between the 20-pin dual row connector (labeled OS1) of the camera and

the 68-pin SCSI-2 connector of the PULSAR/DIG/MOD are as follows:

DALSA CL-E1-2048A PULSAR/DIG/MOD
(20-pin dual row connector - OS1) (68-pin SCSI-2 connector)
Pin name Pin no. Pin name Pin no.

D7 1 → DATA7+ 10
D7B 2 → DATA7- 44
D6 3 → DATA6+ 11
D6B 4 → DATA6- 45
D5 5 → DATA5+ 13
D5B 6 → DATA5- 47
D4 7 → DATA4+ 14
D4B 8 → DATA4- 48
D3 9 → DATA3+ 15
D3B 10 → DATA3- 49
D2 11 → DATA2+ 16
D2B 12 → DATA2- 50
D1 13 → DATA1+ 19
D1B 14 → DATA1- 53
D0 15 → DATA0+ 20
D0B 16 → DATA0- 54
STROBE 17 → CLKIN+ 29
STROBEB 18 → CLIKIN- 63

• The connections between the DB-25 connector on the rear panel of the camera and the 68-

pin SCSI-2 connector of the PULSAR/DIG/MOD are as follows:

DALSA CL-E1-2048A PULSAR/DIG/MOD
(DB-25 male connector) (68-pin SCSI-2 connector)
Pin name Pin no. Pin name Pin no.

MCLK 6 ← CLKOUT+ 24
MCLK 19 ← CLKOUT- 58
EXSYNC 17 ← HSYNC+ 26
EXSYNC 4 ← HSYNC- 60
FOR/REV 5 ← CTRL1+ 23
FOR/REV 18 ← CTRL1- 57
GROUND 7 GROUND 1
GROUND 11 GROUND 12
GROUND 20 GROUND 34
GROUND 24 GROUND 35
POWER SUPPLY GROUND GROUND 46
POWER SUPPLY GROUND GROUND 68

NOTE: it is very important that all the GROUNDs of the camera be connected together to

the POWER SUPPLY GROUND, which in turn must be connected to the
GROUND of the Pulsar

PUL-CID-012 2