Appendix B
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Approval Requirements
The SPRINT 2 MULTIPLEXER carrying the BABT / CE168 assessment symbols and
approval number, is approved for connection to the networks identified in this Appendix as
follows:
X.21/V11
Throughout Europe (Pan European) to I-CTR2 based on NET2 at rates up to and including
64Kbps when the composite link is fitted with an X.21/V11 interface card. Connection must
be made using a suitable non-integral interface specific cable, details of which are provided
in Appendix I. This cable is available from Black Box.
X.21bis/ V.24/ V.35
In the UK only, when mains powered, subject to the following requirements:
Service category 1 at rates of 2400, 4800, 9600 and 19200 bps when
composite link (LINK A) or High Speed Channel (HSC) is fitted with a V.24
interface card linked for DTE as shown on page 26. Connection must be made
using a suitable non-integral interface specific cable, details of which are
provided in Appendix I. This cable is available from Black Box.
Service category 2 at rates of 48000, 56000, and 64000 bps when composite
link (LINK A) or High Speed Channel (HSC) is fitted with a V.35 interface
card linked for DTE as shown in on page 26. Connection must be made using
a suitable non-integral interface specific cable, details of which are provided in
Appendix I. This cable is available from Black Box.
Approval for both service categories has been granted in accordance with BS6328 : part
7 : 1990 section 4.3, connection being only to a relevant branch system for particular digital
circuits. The above defined interface specific cables constitute a relevant branch system for
the particular digital circuit.
