Synway Information Engineering Co., Ltd
UMCT Intelligent Switch Hardware Manual
(Ver. 1.3)
Page 11
Push the POWER button (see Figure 2-7) to start the switch. Then the STDBT indicator goes out
while the POWER indicator lights up and keeps on all the time. During computer startup, the HDD
indicator lights up and keeps winking. Meanwhile, there appears the normal boot screen on the
computer. Now the switch is started up successfully.
2.2.2 Turn-off Operation
Except for using the system turnoff command, you can keep pressing the POWER button to turn
off the switch. Once it is turned off, the POWER indicator goes out while the STDBY indicator
lights up and keeps on all the time. Only after the switch is disconnected from the power will the
STDBY indicator go out.
2.3 Hot Replacement
The UMCT intelligent switches support the feature of hot replacement which allows users to take
out and replace the damaged components or boards during system runtime so as to improve the
system capability of recovering from disasters as well as the system expansibility and flexibility. At
present they do not support the hot-add operation.
To perform hot replacement during system runtime, stop the running boards first and pull out the
one to be replaced. Insert the new board and start it in the system. This operation is now
completed.
Note: Directly pulling out boards with relative applications unclosed may result in data
loss or system malfunction.
The following operations are not supported so far.
1) Install a functional board after the system is started up.
2) During system runtime, pull out a functional board and install another one of new kind or
move a functional board from one slot to another and reinstall it.
Notes:
a) Push the board home into the slot until it can go no further, and ensure that it is
not inclined at an angle before applying lever action on the handles to secure it.
The contact may become loose or the on-board Hot-Swap indicator may turn to be
blue (the Hot-Swap indicator keeps off when the board is working smoothly), or
even the connecting parts on the mainboard of the switch may be damaged if:
(I) Handles are used too early
(II) Handles are used while the board is inclined
(III) Force on handles is not applied evenly.
b) A board can be inserted when the computer is powered on. However, as strong
static electricity may lead to damages, the operator should touch a grounded
conductor to discharge the static electricity on him before inserting the board.
2.4 Fan Changing
Note: Usually the switch we provide has been installed with a fan in the chassis. Only when
the fan is broken does it need to be changed.