Grass-valley 7600REF Manuel d'utilisateur télécharger pdf (Page 21)

7600 SD/HD/MHD-REF — Instruction Manual 21

Installation

These outputs also offer a combination of the following LTC (Longitudinal

Timecode) features with LTC capability (7600 MHD-REF model):

• Digital VITC (SMPTE S266) for standard definition signals only, and

• ATC (SMPTE RP188) for standard definition or high definition SD sig-

nals.

Analog Audio/Remotes

The 25 pin Sub-D connector labeled ANALOG AUDIO/REMOTES pro-

vides a serial communication port, the analog audio output tones, power

fail output status, fan failure status, and the GPI connections.

Pinouts for the ANALOG AUDIO/REMOTES connector are given in

Table 1. Each of the connector function is described in detail in this section.

Fan Failure Output

This open collector output senses the current drawn by the cooling fans

fitted to the enclosure. The detector indicates a failure if a fan is stuck

and/or an open circuit is detected.

Table 1. ANALOG AUDIO/REMOTES Connector Pinouts

ANALOG AUDIO/REMOTES Pin Function Pin Function

1 Fan OK -1 (Pair with pin 16. Closed if OK) 14

Power OK 1

2 RS422 CTS – (minus) 15

Power OK 2

3 RS422 RXD + (plus) 16

Fan OK - 2

4 RS422 TSD + (plus) 17 GPIO - Output 1

5 RS422 RTS – (minus) 18

GPIO - Input 2

6 RS422 TXD – (minus) 19

GPIO - Input 1

7GND 20

RS422 CTS + (plus)

8 RS422 RXD – (minus) 21

GPIO - Output 2

9GND 22

RS422 RTS + (plus)

10 + 12V DC / 0.3A 23

Analog Audio Out 1 – (minus)

11 Analog Audio Out 1 + (plus) 24

Analog Audio Out 2 – (minus)

12 Analog audio Out 2 + (plus) 25 GND

13 GND

Pin 1

Pin 13

Pin 14

Pin 25

D-25 Female

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 83 84

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Grass-valley 7600REF Manuel d'utilisateur Page 21

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