
Cable Interfaces
The 50-pin twisted-pair port is compatible with the IEEE 802.3 Type 10Base-T
standard.
The ThinLAN port is compatible with the IEEE 802.3 Type 10Base2 standard.
The AUI port is compatible with IEEE 802.3 standards.
The RS-232-C console port conforms to V.22 bis.
Electromagnetic
Emissions
*FCC part 15 Class A
CISPR-22 Class A
*EN 55022 Class A
*VCCI Class I
(in US, Canada, and Latic America)
(in Europe)
(in Japan)
Immunity
ESD
*prEN 55101-2 (1991) / IEC 801-2 (3 kV CD, 8 kV AD)
(in Europe)
Radiated Emissions *prEN 55024-3 (1991) / IEC 801-3 (draft) (3 V/m)
(in Europe)
* These specifications are legal requirements in the indicated countries.
Datacomm Declarations
United Kingdom
The HP 28684B and HP 28688B hubs are approved under Approval Number
NS/G/1234/J/100003 for indirect connection to public telecommunications systems within
the United Kingdom.
Sweden
Application and Declaration of Conformity to Swedish requirements has been filed.
Germany
Application for Certification and License approval have been filed.
B-2 Specifications
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