Grass Valley Kalypso Emergency Bypass Option User Manual

Page 8

Kalypso Emergency Bypass Option Instruction Manual

Emergency Bypass Components

Figure 2. 8900TF Frame, Front View

CAUTION

The Emergency Bypass frame front panel must remain in place during system
operation to provide proper cooling. If the panel is removed for an extended
period, modules can overheat and fail to operate correctly.

The forced-air system has a front cover that is equipped with three fans for
air circulation. The fan speed varies with the ambient frame temperature to
extend fan life and reduce noise when the frame is used in cooler configu-
rations and environments. The fan speed control voltage is generated on
the Bypass Frame Monitor module and can be disabled so that the fan runs
at maximum speed only (see

page 24

The right rear of the frame (

Figure 3

) includes ten groups of ten connectors

(corresponding to the ten frame slots), which are used for input/output
functions for inserted modules. The standard Kalypso Emergency Bypass
option only uses two of these groups, typically slot 7 for the Relay Module
and slot 8 for the Keyer module.

Figure 3. 8900TF Frame, Rear View

The power/communication section at the left rear of the frame provides:

•

RS-422 communications (the connector is labeled RS-232, but is RS-422
when the Bypass Frame Monitor module is installed),

•

AC power plug connections, and

•

SMPTE Alarm BNC (J101) for fault reporting (see below).

The Ethernet connector is not used with the Kalypso Emergency Bypass
option.

0619_05_03_r0

LOCK

FAULT

PS1

PS2

8900 Series

DA10

0619_05_04_r1

J9 J10

O
U

SMPTE

ALARM

J101

RS232

J102

ETHERNET

J103