Welltech SPCI2S Boards - Manual (Page 22)

Section 4 Regulatory Specifications and Declarations
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It is the responsibility of the system integrator or network operator to ensure
that installations meet Telecommunication specifications in support of
interconnect agreements.
4.3 Essential Compliance Information
This section documents miscellaneous points that should be observed to
ensure the proper and safe use of this product worldwide.
4.3.1 Safety
Users of this product, and service personnel, must refer to the Safety
information included in Section 1 Warnings and Cautions on page 7 and in
the documentation of any host computer into which the board is to be
installed.
The SCPI2S and SPCI4 boards are approved for installation in a host
computer, and with host attachments, which are covered by a relevant type
approval of their own.
It is a condition of approval that the power required by the host and the total
of all adapter boards installed within the host environment, together with any
auxiliary apparatus, does not exceed the power specification as stated in the
Technical reference Manual of the host computer. The power required by this
board is 1.5A typical, 2.0A maximum, @ +5V.
It is not intended for this product to be installed in a home or residential
environment. It is not intended for this product to be installed or operated in
a stressful or inordinary environment such as industrial sites, medical
applications, or in flammable/explosive environments.
4.3.2 USA and Canada Specific Safety aspects
This SCPI2S and SPCI4 boards are for use only with UL listed computers that
have installation instructions detailing user installation of card cage
accessories.
To comply with the relevant safety requirements in these countries,
connection of this equipment to the public network MUST be via a UL listed
channel service unit (i.e. the board must NOT be directly connected to the
external public line).
4.3.3 EMC
Installation of Cables
In order to ensure that the EMC performance of the products meet regulatory
requirements: -
Cables used for the PCM Interface Ports, marked L1 to L4, shall be twisted-
pair screened cables, grounded at both ends.
Cables used for the SS7 Serial Interface Ports (SPCI2S), marked AUX, shall
have the ferrite clamps, provided with the product, installed close to the
connector backshell.