Specifications

- 61 -
AS/CA S002:2010 COPYRIGHT
OCTOBER 2010
APPENDIX
B CE FOR EXCLUSIVE USE WITH CSS
B1 CE with message wait indicator
Some CSS may use a higher voltage, applied from an extension port in the
OFF-LINE state, as a signalling state. CE capable of detecting this signal should
have the following:
(a) An insulation resistance of not less than 30 k, when tested with 100 V d.c.
applied with either polarity.
(b) Markings which clearly indicate that the CE may only be connected to
the extension ports of a CSS.
Note: CE complying with these requirements may need to comply with
additional Message Wait Indicator requirements individual to a CSS to
ensure interoperability. The relevant CSS supplier should be consulted.
Compliance should be checked by measuring the DC resistance between the
line conductors and inspection as appropriate.