© 2016 SPI Lasers UK Ltd.
Commercial in Confidence
SM-S00500 Revision A 21 October 2016
redPOWER QUBE Cased Fiber Laser User Manual
which secure it. Prepare the supply cord by removing about 60mm of the outer insulation and
8mm to 10mm of the inner insulation from each of the three conductors. Pass the end of the
supply cord through the cable gland and connect the ground wire to the green and yellow
terminal. If the supply has distinct live (hot) and neutral conductors, connect the live to the
grey terminal and the neutral to the blue terminal. If the supply does not have distinct live and
neutral conductors (e.g. 120-0-120V supplies, or two phases of a 208V 3 phase supply), then
it does not matter which way round the conductors are connected. Bootlace ferrules may be
used if desired. Tighten the terminal screws to 1.5Nm to 1.8Nm. Tighten the cable gland,
ensuring there is no strain on the individual conductors. Replace the cover and 18 screws.
The finished connection is shown in Figure 14. The wire colours shown are standard in
Europe, other territories may use different colours.
Check the continuity of the ground connection before switching on the supply.
Figure 14 Internal Connections for Electrical Supply
7.6.4 PL1 – Serial Port Control Interface
A cable with standard 9-way D-plug is used to connect the QUBE Fiber Laser to the system
controller or a PC. The interface operates with signal levels defined by the RS-232
specification. The pin-out is shown in Table 9.
Table 9 Serial Port Connections
Transmit Data Output (TX)
Pin connections are 2-3, 3-2, 5-5, with no other connections necessary. If connection is made
directly from a PC to the QUBE Fiber Laser a crossover (NULL MODEM) cable should be
used.
RS-232 is the preferred standard. If longer cable runs are required than allowed for by the
RS-232 standard, then an RS-232 to RS-422 converter can be used, but this will be the
responsibility of the user.
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