E1/T1 PCI card installation guide
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3.6 Network
Timing
The E1/T1 PCI card has been tested for compliance with the pulse and jitter requirements of
CCITT G703, I431, ETS300-011 and in some cases additional national or international service
requirements.
The E1/T1 PCI card usually derives the timing for its network output ports from one of the
network receive ports.
Alternatively, the E1/T1 PCI card may be configured to derive the timing for network output ports
from the H.100 CTBus clock.
The jitter performance required to maintain the card's approval status is only guaranteed if
an external clock is derived from another Aculab E1/T1 Digital Access card that is connected to the network
. Other clock
configurations may require further testing to ensure compliance.
3.7 Power
Supply
The E1/T1 PCI card takes its power from the host computer expansion bus and has the following
power requirements:
5 Amps Max at +5V (DC) +/- 5%
It is the user's responsibility to ensure that the host computer is able to safely supply the power
required by the card in addition to any other auxiliary apparatus that draw power from it.
The card is specified to operate correctly with a tolerance (plus or minus) of 5% on the nominal
DC power supply voltage.
3.8 Regulatory
Warnings.
The CE Marking has been applied to the Aculab GroomerII to demonstrate compliance with the
following European standards.
EN55022 and EN55024 for electromagnetic compatibility.
EN60950 for electrical safety.
3.9
Approved Functionality & Label
Details of the approved functionality are included in the country specific appendices.
Users are reminded that when the card has been installed in a host computer it is still only the
card that is approved so the Approval label must not be attached to the host.
3.10 Documentation
Release
To ensure operation of the E1/T1 PCI card consistent with the terms of approval, it is essential to
ensure that the card is accompanied by the correct release of the instructions for use, and is used
in conjunction with appropriate device drivers.
If an application developer, by virtue of an application program, reduces the functionality of the
E1/T1 PCI card before delivery, then the instructions for use may be rewritten so that only the
functionality implemented is described, provided that all of the sections regarding approval,
installation and connection are retained.
3.11 Software
Release
To ensure correct operation of the PCI card, it is necessary that application programs be built
using the correct release of software files for the particular revision of the E1/T1 PCI card. To aid
this process it is recommended that the application program read the major revision level from
the device driver, and compares it with the major revision value for which their application was
built and tested. The minor revision level is essentially a documentary indicator, but the major
revision level value indicates a change that may impact the Host application.