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FlashBack-2 - Direct Connection for Embedded Applications

 

 

For OEM (Original Equipment Manufacturer) embedded applications the best way to interface to the FlashBack-2 is by a direct connection the unit's 25 way D-Type.

FlashBack-2 25 way D Type Interface
FlashBack-2's 25 way D-Type Interface

 

 

Figure 1 below shows the pin-out of the FlashBack-2's 25-way D-Type Socket. Connections may be made via standard 25-Way D-type plug readily available from many component suppliers.

 

FlashBack-2 Interface Connections

Figure 1: FlashBack-2 Interface Connections

 

 

Pin

Name

I/O

Description

1

DC Power

In

6 to 15 volts at ~2.5 Watts (eg ~210 mA at 12 volts, ~420 mA at 6 volts)

2

RS232 RXD

In

RS232 serial data input

3

RS232 TXD

Out

RS232 serial data output

4

Rec Trig / Stop

In

Contact to ground starts recording for a preset (trigger) time. Can be configured to be a record stop input. See Section 10.3.

5

Gnd (switch)

-

Ground for Rec Switch (pin 17) and Rec Trig / Stop inputs (pin 4) See Section 10.521

6

Gnd (audio)

-

Ground for audio inputs pins 7 & 21.

7

Audio R in

In

Left audio input (> 10 KW impedance) mic / line level.

8

Mic Bias L

Out

3.3 Volt microphone bias.

9

Gnd (audio)

-

Audio Ground.

10

Audio monitor R

Out

Audio monitor of the right audio input at line level.

11

Video Gnd

-

Video ground.

12

Video Gnd

-

Video ground.

13

Video Gnd

-

Video ground.

14

Power Gnd

-

Power ground.

15

RS232 Gnd

-

RS232 ground.

16

Camera DC out

Out

Switched DC output, with same voltage as the DC input (pin 1) for powering cameras. Active whilst not in stand-by mode. Current limit of ~ 500 mA

17

Rec Switch

In

Unit records when connected to Ground (pin 5).

18

Record OK

Out

2.6 V (with 100 mA current limit) when recording OK.  Gnd when not recording. Can be used to drive an LED via a resistor. See Section 13, page 31.

19

Mic Bias R

Out

3.3 Volt microphone bias (~ 1 kW impedance).

20

Audio Gnd

-

Audio Ground.

21

Audio L in

In

Left audio input (> 10 KW impedance) mic / line level.

22

Audio Monitor L

Out

Audio monitor of the left audio input at line level.

23

Video Monitor

Out

1 Vpp 75W output of the video input. Includes FlashBack-2 onscreen display.

24

S-Video C

In

The “C” input (colour) when configured for YC (S-Video) input. See Section 10.3.

25

Video In

In

PAL or NTSC 1 Vpp 75W video input.

Figure 2: 25 Way D-Type Pin Out

 

Due to continual product development Ovation Systems reserve the right to change specifications without notice. E&OE.