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Remote control via modem, Jupiter configuration – Grass Valley VM 3000 System Controllers v.7.4 User Manual

Page 180

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Hardware Installation

2−108

VM 3000 Installation and Operating Manual

REMOTE CONTROL VIA MODEM

VM/SI 3000 (VM

3000 shown)

Serial (MPK) bus

operating at 2400

baud

Jupiter control panel

Telephone line

Modem

Modem

Figure 2−122. Modem control installation.

LAN

RS−422/232

converter

RS−422/232

converter

The Jupiter system can be controlled through a modem connection using:

S A CP 3000 control panel equipped with a 1200/2400 baud PROM (FCS−3306/1/2, part no.

45−043114−01A/B). These products are described in separate documents, part no. 04-883306-001 (1200 baud
version) and 04-883306-002 (2400 baud version).

S An MPK control panel that allows baud rate selection on the front panel (e.g., CP 3800A, CP 3830, CP 3808,

CP 3832, CP 3864 etc.). These products are described later in this manual.

The modems used in such a system should be connected to the Jupiter hardware through RS−232/422 converters. See Figures
2−122 and 2−123. The only modem supported for this application is the Motorola V.3229, which is available from Black Box
Corp. or NetLink Technology, Inc. Two RS−232/422 Converters are recommended: 1), the Black Box IC107A RS−232 >
RS−422 Converter, and 2) the Integrity Instruments 422−25I with external power supply. For instructions that apply specifi-
cally to these third−party items, please refer to Grass Valley Field Engineering Bulletin 04-047604-081.

Figure 2−123. Generalized modem wiring.

1

2

3

7

8

P1

DB9P

(male)

Shield

Green

Black

White

Red

Frame ground

Receive A (−)

Transmit A (−)

Receive B (+)

Transmit B (+)

Transmit B (+)

Transmit A (−)

Receive B (+)

Receive A (−)

VM 3000

control board

RS−422/232

converter

1

2

3

7

8

P1

DB9P

(male)

Green

Black

White

Red

Frame ground

Receive A (−)

Transmit A (−)

Receive B (+)

Transmit B (+)

Transmit B (+)

Transmit A (−)

Receive B (+)

Receive A (−)

Twisted pairs

Jupiter control

panel

RS−422/232

converter

Shield

Modem

Modem

Jupiter Configuration

Using the Serial Protocol table, change to the appropriate baud rate for the port that is connected to the modem. Only one
control panel can be defined on a port that is connected to a modem. For more information, see page 5−25.

This manual is related to the following products: