CH1787ET(1998) 데이터 시트보기 (PDF) - Cermetek Microelectronics

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CH1787ET
(Rev.:1998)

Small Functional Modem

Cermetek Microelectronics 

8) The supplied FCC registration label must be applied visibly

on the outside of the host product.

9) The host product’s User Manual must provide the user with

instructions for connection and use as recommended in Sec-

tion FCC Registration.

MOUNTING THE MODEM

The modem contains static-sensitive devices and should only be

handled by personnel and in areas that are properly protected

against static discharge.

Changes in Attestation Procedure for Plugs and Jacks

(Name of applicant) attests that the network interface plugs or

jacks used on this equipment comply with and will continue to

comply with the mechanical requirements specified in Part 68,

Sub-part F, specifically the dimensions, tolerances and metallic

plating requirements. The compliance of these connectors will be

assured by purchase specifications and incoming inspection.

Documentation of such specifications and/or inspections will be

provided by the FCC within 30 days of their request for the same.

There are two mounting techniques that are recommended for

physically connecting the modem to your circuit card; 1) sockets,

and 2) direct soldering.

The modem may be wave soldered on a circuit card. This part is

hermetically sealed for normal wave soldering process.

The socketing approach to mounting eliminates cleaning and

desoldering concerns. When the socket is used, it must make a

solid connection to all modem pins. Failure to do so will cause

unreliable modem operation. Also, steps should be taken to as-

sure that the module remains tightly seated in the socket after the

host product is shipped.

FCC REGISTRATION

The CH1787 is registered with the FCC (Federal Communica-

tions Commission) under Part 68. To maintain the validity of the

registration, you must serve notice to the end user of the product

that contains the modem of several restrictions the FCC places on

the modem and its use. The following notice is recommended

and should be included in the host product’s USER MANUAL.

Also, the FCC requires that Cermetek make all repairs to the mo-

dem. If repair is necessary after the modem is installed in your

product and has been delivered to your customer, the modem

must be returned to you where it can be removed from the host

product and then forwarded to Cermetek for repair.

Cermetek Microelectronics, Inc.

FOR YOUR USER’S MANUAL

The Part 68 rules require the following or the equivalent informa-

tion be provided to the end user of equipment containing a DAA:

Type of Service: The (insert your product name) is designed to be

used on standard device telephone lines. It connects to the tele-

phone line by means of a standard jack called the USOC RJ-11C

(or USOC FJ45S). Connection to telephone-company-provided

coin service (central office implemented systems) is prohibited.

Connection to party lines service is subject to state tariffs.

Telephone Company Procedures: The goal of the telephone com-

pany is to provide you with the best service it can. In order to do

this, it may occasionally be necessary for them to make changes

in their equipment, operations or procedures. If these changes

might affect your service or the operation of your equipment, the

telephone company will give you notice, in writing, to allow you to

make any changes necessary to maintain uninterrupted service.

Document No. 603-0182 Rev. D (11/98) 9

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