Multi-Tech Systems Hub - Manual (Page 37)

CommPlete 4000 Communications Server User Guide 37
Appendices
Compliance with BABT Requirements
Approved for connection to telecommunications system specified in the instructions for use subject to the
conditions set out in them.
Warning: Interconnection directly, or by way of other apparatus, of ports marked "SAFETY WARNING see
instructions for use" with ports marked or not so marked may produce hazardous conditions on the network.
Advice should be obtained from a competent engineer before such a connection is made.
It is a condition of approval that the power required by the host and the total of all adapter cards installed
within the host environment, together with any auxiliary apparatus, does not exceed the power specification as
stated in the Technical Reference Material of the host apparatus.
The power requirements for the MULTIMODEMISI are:
Modem operating voltages: +12V D.C., -12V D. C., +5V D.C.
Modem Power Consumption: 8 Watts
In order to maintain the independent approval of this card, it is essential that when other option cards are
introduced which use or generate a hazardous voltage, the minimum creepages and clearances specified in
the following table are maintained. A hazardous voltage is one which exceeds 42.4V peak a.c or 50V d.c. If
you have any doubt, seek advice from a competent engineer before installing other adapters into the host
equipment.
The equipment must be installed such that with the exception of connection to the host, clearance and
creepage distances shown in the following table are maintained between the card and any other assemblies
which use or generate a voltage shown in that table. The larger the distance shown in brackets applies where
the local environment within the host is subject to conductive pollution or dry nonconductive pollution which
could become conductive due to condensation. Failure to maintain these minimum distances would invalidate
approval.
Clearance (mm) Creepage (mm) Voltage Used or Generated
by Host or Other Cards
2.0 2.4 (3.8) Up to 50 Vms or Vdc
2.6 3.0 (4.8) Up to 125 Vms or Vdc
4.0 5.0 (8.0) Up to 250 Vms or Vdc
4.0 6.4 (10.0) Up to 300 Vms or Vdc