Checklist for electrical connection/disconnection of the TRU and shaft.
This procedure aims to list the steps to connect (or disconnect) a Twin Rotating Unit
(TRU) from the mobile rack.





Connect (or disconnect) the two connectors (A) (type UDO) connecting the TRU
with the shafts.
Connect (or disconnect) the two 24V power supply connectors (B) (type Burndy 4
pins) marked 24V.
Connect (or disconnect) the four connectors (C) (type rectangular Burndy 50 pin,
2 for each aperture) marked 1 TO 48 HAUT and 49 TO 78 BAS. No aperture
numbers are marked on these connectors.
Connect (or disconnect) the two connectors (D1 & D2) (type rectangular Burndy
26 pin) marked AUXILIARY D1 & AUXILIARY D2 coming from the fixed rack,
to the corresponding apertures.
Connect (or disconnect) the two RS232 connectors (E) (type Burndy 8 pins)
marked AP1 MOTOR1 & AP2 MOTOR2 to the corresponding apertures.
NB: the two inclinometers (F) must be positioned as shown in the figure i.e. with the
Burndy connector facing away from the magnet.
PHOTO………….
Checklist for electrical connection/disconnection between the Mobile
Rack and the Fixed Rack.





Connect (or disconnect) the four connectors B1-A , B1-B , B2-A and B2-B to the
of the mobile rack (top and middle).
Connect (or disconnect) the two connectors QLOC AP1 and QLOC AP2 to the
corresponding QLOC connectors on the mobile rack.
Connect (or disconnect) the two Field Advance connectors FA AP1 and FA AP2
(blue cables) to the corresponding Field Adv connectors on the mobile rack.
Connect (or disconnect) the two connectors T-COIL AP1 and T-COIL AP2 to the
corresponding Temp Coils connectors on the mobile rack
Connect (or disconnect) the three connectors AMP1 , AMP2 and GPIB to the
bottom of the rack.