NEC ELECTRA ELITE IPK II, Руководство по аппаратному обеспечению системы, Страница: 144 / 642

___________________________________________________________________________________
6 - 2 Installing ETUs (Circuit Cards)
___________________________________________________________________________________
Document Revision 3 Electra Elite IPK II
S
ECTION
2 I
NSTALLATION
2.1 Installation Precautions
J
CMOS technology that is very susceptible to static is extensively used in
the ETUs in this system; therefore, extreme care must be taken to avoid
static discharge when handling ETUs.
J
Make all switch setting changes on the ETU before inserting it in the
KSU.
J
When installed, the component side of all ETUs must face the left side of
the KSU. Ejector tabs are always on top. Refer to
Figure 6-1 Inserting
the ETU into the KSU .
J
Carry an ETU in a conductive polyethylene bag to prevent static
electricity.
J
The ETU installer must wear a grounded wrist strap to protect the ETU
from static electricity.
Figure 6-1 Inserting the ETU into the KSU
Observe the following precautions when installing the
ETUs to avoid static electricity damage to hardware or
exposure to hazardous voltages.