User`s guide

Preliminary Manual RELAY BOX - RB132/GP132 USER’S GUIDE

EUPHONIX INC - RB132/GP132 p9 Wednesday, August 26

, 2000

NOTES ON GP132 OPERATION

The GP132 has a bi-directional MIDI control port, however, MMC and SysEx are single directional

and are received by the GP132. When you use this unit for track arming or fader starts, the GP132

receives MIDI commands and then activates relays. Therefore, if something wrong with MIDI

connection or if the GP132 power is off, there is no way for the console to know that the GP132 is

not being controlled properly.

The buttons (1-32) on the GP132 front panel are assigned from MIDI messages 0-31. This is fixed

and can’t be changed.

The GP132 contains battery backed up RAM (memory). It physically lives on the LUMP board. The

unit can operate from RAM or the EPROM. The software can be upgraded by downloading firmware

into the GP132's RAM, using a computer with a serial communication port. Therefore, it is possible

that the GP132's current software (running from RAM) is newer than the version written on the

EPROM label.

Please contact Euphonix Customer Service for the latest firmware upgrades.

HOW TO REPLACE THE EPROM

An EPROM is a static sensitive component. Before remove the EPROM, touch a large metal or grounded object, such as rack

frame. Make sure the power cable is unplugged. Do not remove the LUMP board from the main board, when removing the

EPROM.

Place the new EPROM in the same place. Position pin1 to near the U2 silk screen. Placing the EPROM backwards will damage

the EPROM.

The GP132 boots up and runs it's program from the

battery backed RAM. Installing a new version EPROM

won’t take effect until the RAM is cleared.

To Clear RAM memory, Remove the top cover of the

enclosure. Turn the unit ON. While the unit is running,

short the WD pin and the 0V pin for a moment. These are

located on the LUMP board (as shown).

The unit will then clear the memory and restart itself.

When LEDs on the front panel start cycling, the RAM has

been cleared and the reboot was successful.