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SAMSUNG DCS 70
INSTALLATION MANUAL
2.
Using the mounting template supplied with the DCS 70 KSU to position the mounting
screws supplied. Insert the screws but do not tighten.
3.
Switch off the power and remove the cover on the KSU
4.
Remove the dummy tabs on the right side of the KSU with the appropriate tools to
allow for connections between the KSU and the Expansion Cabinet. Hole A is for the
tail cable and hole B is for the signal and power cables. (see Fig 3.2)
5.
Move the Expansion cabinet to the KSU and slide the lugs on the base of the
Expansion cabinet into the slots on the side of the KSU and lower the Expansion
Cabinet. (see Fig 3.4)
NOTE : Care should be taken to ensure that the ribbon cable and other connecting cables are
not caught between the cabinets.
6.
Connect the the flat ribbon cable and the top signal cable to the header marked P12 on
the KSU motherboard. (See Figure 3.5).
Connect the second cable from the header marked RING.GND on the expansion
cabinet backplane to the header marked P8 on the KSU motherboard.
Screw the single green wire to Land marked F.G. on the KSU Motherboard.
7.
Insert the cable tail through the KSU and into the Expansion cabinet . Insert new
option cards and close the cabinets with the covers provided, secure the covers with the
screws on the base of the units and switch ON the power. (See Figure 3-6).
PROTECTIVE EARTHING
The protective earth connection to the DCS 70 is provided via the three core mains lead. The
earth wire in the mains cord (Green/Yellow) is connected in the factory to the earth terminal
within the system. The Earth wire is connected directly to the bottom left hand corner of the
Power Supply case
The protective earth (PE) is used for surge protection and for the electrical safety of the
system. The system must be plugged into a GPO socket that is correctly earthed. The PE
provides all system earthing requirements, a TRC is not required and should not be
connected.
The equipment, users and service personnel must be protected against possible voltage and
current surges on exchange lines when working on the KSU. This must be done using one, or
both, of the following methods when installing or working on the system -
• Plug the mains lead into the GPO socket, ensuring that the socket is turned off.
• Isolate the exchange lines from the system. This may be done by isolating the lines at a
distribution frame.
The Power Supply has fuses in both the mains active and neutral legs, therefore caution
should be used when working on or near the power supply. Turn OFF the power supply
switch on the KSU before working on the system.
WARNING
Page 3-2
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10
January, 2000
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