Black Box ServSwitch CX 用户手册
0
®
FCC requirements for telephone-line equipment
1 The Federal Communications Commission (FCC) has established rules which
permit this device to be directly connected to the telephone network with
standardized jacks. This equipment should not be used on party lines or coin
lines.
standardized jacks. This equipment should not be used on party lines or coin
lines.
2 If this device is malfunctioning, it may also be causing harm to the telephone
network; this device should be disconnected until the source of the problem
can be determined and until the repair has been made. If this is not done,
the telephone company may temporarily disconnect service.
can be determined and until the repair has been made. If this is not done,
the telephone company may temporarily disconnect service.
3 If you have problems with your telephone equipment after installing
this device, disconnect this device from the line to see if it is causing the
problem. If it is, contact your supplier or an authorized agent.
problem. If it is, contact your supplier or an authorized agent.
4 The telephone company may make changes in its technical operations and
procedures. If any such changes affect the compatibility or use of this device,
the telephone company is required to give adequate notice of the changes.
the telephone company is required to give adequate notice of the changes.
5 If the telephone company requests information on what equipment is
connected to their lines, inform them of:
a The telephone number that this unit is connected to.
b The ringer equivalence number.
c The USOC jack required: RJ-11C.
d The FCC registration number.
b The ringer equivalence number.
c The USOC jack required: RJ-11C.
d The FCC registration number.
Items (b) and (d) can be found on the unit’s FCC label. The ringer
equivalence number (REN) is used to determine how many devices can be
connected to your telephone line. In most areas, the sum of the RENs of all
devices on any one line should not exceed five (5.0). If too many devices are
attached, they may not ring properly.
connected to your telephone line. In most areas, the sum of the RENs of all
devices on any one line should not exceed five (5.0). If too many devices are
attached, they may not ring properly.
6 In the event of an equipment malfunction, all repairs should be performed
by your supplier or an authorized agent. It is the responsibility of users
requiring service to report the need for service to the supplier or to an
authorized agent.
requiring service to report the need for service to the supplier or to an
authorized agent.
Certification notice for equipment used in
Canada
Canada
The Canadian Department of Communications label identifies certified
equipment. This certification means that the equipment meets certain
telecommunications-network protective, operation, and safety requirements.
The Department does not guarantee the equipment will operate to the user’s
satisfaction.
Before installing this equipment, users should ensure that it is permissible to be
connected to the facilities of the local telecommunications company.
The equipment must also be installed using an acceptable method of
connection. In some cases, the company’s inside wiring associated with a
single-line individual service may be extended by means of a certified connector
assembly (extension cord). The customer should be aware that compliance with
the above conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian
maintenance facility—in this case, your supplier. Any repairs or alterations
made by the user to this equipment, or equipment malfunctions, may give
the telecommunications company cause to request the user to disconnect the
equipment.
Users should ensure for their own protection that the electrical ground
connections of the power utility, telephone lines, and internal metallic water
pipe system, if present, are connected together. This precaution may be
particularly important in rural areas.
CAUTION:
Users should not attempt to make such connections themselves, but should
contact the appropriate electric inspection authority, or electrician, as
appropriate.
The LOAD NUMBER (LN) assigned to each terminal device denotes the
percentage of the total load to be connected to a telephone loop which is used
by the device, to prevent overloading. The termination on a loop may consist of
any combination of devices, subject only to the requirement that the total of the
load numbers of all the devices does not exceed 100.
equipment. This certification means that the equipment meets certain
telecommunications-network protective, operation, and safety requirements.
The Department does not guarantee the equipment will operate to the user’s
satisfaction.
Before installing this equipment, users should ensure that it is permissible to be
connected to the facilities of the local telecommunications company.
The equipment must also be installed using an acceptable method of
connection. In some cases, the company’s inside wiring associated with a
single-line individual service may be extended by means of a certified connector
assembly (extension cord). The customer should be aware that compliance with
the above conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian
maintenance facility—in this case, your supplier. Any repairs or alterations
made by the user to this equipment, or equipment malfunctions, may give
the telecommunications company cause to request the user to disconnect the
equipment.
Users should ensure for their own protection that the electrical ground
connections of the power utility, telephone lines, and internal metallic water
pipe system, if present, are connected together. This precaution may be
particularly important in rural areas.
CAUTION:
Users should not attempt to make such connections themselves, but should
contact the appropriate electric inspection authority, or electrician, as
appropriate.
The LOAD NUMBER (LN) assigned to each terminal device denotes the
percentage of the total load to be connected to a telephone loop which is used
by the device, to prevent overloading. The termination on a loop may consist of
any combination of devices, subject only to the requirement that the total of the
load numbers of all the devices does not exceed 100.