User Manual DEV 1953
Copyright DEV Systemtechnik GmbH 2015-2017
9
Environmental Conditions
The device is designed for indoor use and for an ambient temperature range.
Mechanical Integration
It is not permitted to fix the chassis on the rack mount flanges, only. Balanced
weight distribution of the chassis has to be ensured by placing it on a solid surface
or by using rack rails.
Sufficient airflow through the chassis must be ensured to achieve best cooling
results. Do not block or obstruct the airflow through the chassis at the front and at
the rear side, e.g. by placing large components close to the rear side.
Grounding, AC Connection, Cables
To minimize shock hazard the device must be connected to an electrical ground via
a ground wire, please refer to chapter 4.2.2.
For the AC connection, the device must be connected to the AC power supply
mains through two power cables with three conductors and with the ground wire
firmly connected to an electrical ground (safety ground) at the power outlet. Any
interruption of the protective ground conductor will cause a potential shock hazard
that might cause personal injury.
Risk of electrical shock and energy hazard:
Disconnecting a single power supply line only does not interrupt the AC supply
(with Option 14: DC supply) of the device. To isolate the device completely,
disconnect both power supply lines.
Do not connect the device to AC mains supply exceeding the specifications for input
voltage and frequency. The recommended AC cables to be applied are standard
high temperature power cables with type IEC 60320-C13 appliance plug appro-
priately rated to the conditions of the country where the device is operated.
With applied Option 14, the device is supplied with DC voltage instead of AC mains.
In this case, do not connect the device to DC mains supply exceeding the
specifications for input voltage. For the DC supply wiring use cables with an
appropriate wire size. The pin assignment of the DC supply connector is stated in
chapter 7.
Laser Safety (applies if equipped with Optical Switch Modules DEV 7462, DEV 7463)
Safety of Laser Products
DEV Systemtechnik recommends following the governing standard of the
country where the product is operated to assure regulatory compliance and to
provide the necessary safety programs to protect the operators and other
persons who get in contact with the product.
It is recommended to power down the product while working on the optical
fiber wiring.
The optical modules installed in the product operate with light at a non-visible
wavelength. Highest caution has to be taken, since the modules may carry laser
light that is capable to harm the human eye!
If no optical fiber is (to be) connected to an optical module, the optical con-
nector(s) have to be equipped with the appropriate protection cover(s).
Direct exposure to the beam is to be avoided, i.e. do not look into
unterminated optical ports or at fibers that connect to unknown sources.