Safety Instructions
D
3610-A2-GB91-90
July 1999
Government Requirements
Certain governments require that instructions pertaining to connection to the telephone network be
included in the installation and operation manual. Specific instructions are listed in the following
sections.
United States
Notice to Users of the Telephone Network
This equipment complies with Part 68 of the FCC rules. On the bottom of the equipment is a label
or silk-screened text that contains, among other information, the FCC registration number and
Ringer Equivalence Number (REN) for this equipment. If requested, please provide this
information to your telephone company.
The REN is useful to determine the quantity of devices you may connect to your telephone line
and still have all of those devices ring when your number is called. In most, but not all areas, the
sum of the RENs of all devices should not exceed 5. To be certain of the number of devices you
may connect to your line, as determined by the REN, you should call your local telephone
company to ascertain the maximum REN for your calling area.
If your Model 3610 or 3611 DSU (with DBM) causes harm to the telephone network, the
telephone company may discontinue your service temporarily. If possible, they will notify you in
advance. But if advance notice is not practical, you will be notified as soon as possible. You will be
advised of your right to file a complaint with the FCC.
Your telephone company may make changes in its facilities, equipment, operations, or procedures
that could affect the proper operation of your equipment. If so, you will be given advance notice so
as to give you an opportunity to maintain uninterrupted service.
The DBM cannot be used on public coin-operated telephone service provided by the telephone
company. Connection to party-line service is subject to state tariffs. (Contact the state public utility
commission, public service commission, or corporation commission for information.)
No repairs may be performed by the user. Should you experience difficulty with this equipment,
refer to the Equipment Warranty and Support section of Chapter 1 in the COMSPHERE
3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic
Interface Options, User’s Guide, which is shipped with the 3610 DSU.
For Digital Data Service (DDS) installations, inform the local telephone company of the
appropriate network channel interface code for the service you desire.
DDS
Interface
Code
Data Rate
(bps)
04DU5-24
2400
04DU5-48
4800
04DU5-96
9600
04DU5-19
19,200
04DU5-56
56,000
04DU5-64
64,000
Содержание COMSPHERE 3610
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