Figure 4-6 Typical Chromatograph for Chrom-2 (Lights)
4.7 Security System
The NGC Board has a bi-level security system built in. For the purpose of this
manual, this is referred to as hardware security. When the NGC is accessed
through PCCU32 or WINCCU Host software packages, either remotely or locally,
there is a third level of security included. This is referred to as the software
security.
The security switch located on the termination panel of the NGC must be switched
down for the hardware security system to be functional. The switch must be
switched up to change the device's security code. Security codes are checked via
remote communication whether the switch is on or off.
4.7.1 Security Code
The setup, as designed, has each user log on to the system with a unique user
name (up to 25 alphanumeric digits) and 4-digit alpha-numeric password before
connecting to the unit.
4.7.2 Hardware Security
The hardware security system is designed to have two levels of user access: 1)
reading data files, read only access, and 2) sending application and
configurations, read/write access.
By default, user access is restricted from modifying the application table or from
downloading files to the device’s TFData and TFCold drives, but has all other
user-type privileges. These default privileges can be edited by the administrator
and consist of 4-digit alphanumeric pass codes, level 1 and level 2.
4.7.3 Software Security
The tri-level software security system is designed for the password administrator
to set up the accounts and privileges for themselves as well as all other host
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