• Topic ID: id_16158095
  • Version: 2.0
  • Date: Jun 10, 2020 2:41:58 AM

DASM Settings and LEDs

1 GE Specific Jumper Settings

Figure 1. DASM Jumpers

2 GE Specific SCSI Settings

Figure 2. DASM Bottom, Showing SCSI Settings

3 DASM/LCAM Host Control Serial Link (Digital DASM Only)

RS232 serial host control interface, 25-pin D-type connector

  • pin 2 (TX)

  • pin 3 (RX)

  • pin 7 (GND)

A null modem cable may be required (reverses pins 2-3) between some cameras.

  • baud rate = 1200

  • start bits = 1

  • stop bits =1

  • parity = even

  • end of message = CR

  • protocol = ACK/NACK (3M M952)

4 DASM LEDs

DASM green LEDs viewed from front of DASM and air vents at bottom. The “RDY” and “XFR” LEDs only exist on the analog VDB DASM.

  • PWR - on whenever DASM power applied (+5VDC)

  • CPU - flashes idle heartbeat at 1 CPS or indicates CPU activity

  • SCSI - flashes when OC and DASM communicate over the SCSIbus

  • PIF - flashes when the DASM and camera communicate over the serial port

  • RDY - analog VDB only, indicates an image is ready to be “grabbed” by the camera video/analog input port

  • XFR - analog VDB only, indicates an image is being “grabbed” by the camera video/analog input port

5 DASM/LCAM Image Data Interface

RS422/RS485 8-bit digital image data interface, 37-pin D-type connector (3M M952 defacto industry standard digital interface).

  • pixels: 512

  • lines: 512

  • bits/pixel: 8

  • protocol: 3M M952

The gray scale reference bar option at the left of the filmed images is NOT supported by the digital filming interface.