About This Guide
Technical assistance
HST-3000 Ethernet Testing User’s Guide
xvii
Technical assistance
If you need assistance or have questions related to the use of
this product, use the information in Table 1 to contact JDSU’s
Technical Assistance Center (TAC) for customer support.
Before you contact JDSU for technical assistance, please
have the serial numbers for the service interface module
(SIM) and the base unit handy (see “Locating the serial
number” in the HST-3000 Base Unit User’s Guide).
During off-hours, you can request assistance by doing one of
the following: leave a voice message at the TAC for your
region; email the North American TAC (tac@jdsu.com);
submit your question using our online Technical Assistance
request form at www.jdsu.com.
Conventions
When applicable, this guide uses the typographical conven-
tions and symbols described in the following tables.
Table 1 Technical assistance centers
Region Phone Number
Americas 1-855-ASK-JDSU
240 404 2999
301-353-1550
tac@jdsu.com
Europe, Africa, and
Mid-East
+49 (0) 7121 86 1345
(JDSU Germany)
hotline.europe@jdsu.com
Asia and the Pacific +852 2892 0990
(Hong Kong)
+8610 6833 7477
(Beijing-China)
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