Specifications

DS7400Xi Ver. 3+ Reference Guide Copyright © 1995-96 Detection Systems, Inc. Page 20
provide this information to your local telephone company.
The REN is useful to determine the quantity of devices that may be
connected to your telephone line and still have all of those devices
ring when your telephone number is called. In most, but not all
areas, the sum of the REN's of all devices connected to one line
should not exceed five (5.0). To be certain of the number of devices
that you may connect to your line, you may want to contact your
local telephone company to determine the max. REN for your local
calling area.
This equipment may not be used on coin service provided by the
telephone company. This control should not be connected to party
lines.
Should this equipment cause harm to the telephone network, the
telephone company may discontinue your service temporarily. If
possible, they will notify you in advance. But if advanced notice isn’t
practical, you will be notified as soon as possible. You will be in-
formed of your right to file a complaint with the FCC. The telephone
company may make changes in its facilities, equipment, operations,
or procedures that could affect the proper functioning of your equip-
ment. If they do, you will be notified in advance to give you an op-
portunity to maintain uninterrupted telephone service.
If you experience trouble with this equipment, please contact the
manufacturer for information on obtaining service or repairs.
The telephone company may ask that you disconnect this equip-
ment from the network until the problem has been corrected or until
you are sure that the equipment is not malfunctioning. The repairs
to this equipment must be made by the manufacturer and not the
user.
To guard against accidental disconnection, there is ample room to
mount the Telco jack to the inside of the Control cabinet.
The operation of this Control may also be affected if events such as
accidents or acts of God cause an interruption in telephone service.
7.18 Canadian Dept. of Communications
General Installation Requirements: Notice: The Canadian De-
partment of Communications label identifies certified equipment. This
certification means that the equipment meets certain telecommuni-
cations network, protective, operational, and safety requirements.
The Department does not guarantee the equipment will operate to
the users satisfaction.
Before installing this equipment, users should ensure that it is per-
missible to be connected to the facilities of the local telecommuni-
cations 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 (telephone
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 designated by the supplier. Any re-
pairs or alterations made by the user to this equipment, or equip-
ment 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 inter-
nal 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 elec-
tric inspection authority, or electrician, as appropriate.
Terminal Requirements: The Load Number (LN) assigned to each
terminal device denotes the percentage of the total load to be con-
nected to a telephone loop which is used by the device, to prevent
overloading. The termination on a loop may consist of any combina-
tion of devices subject only to the requirement that the total of the
Load Numbers of all the devices does not exceed 100. The Load
Number of the DS7400Xi is 2.
RFI Requirements: This Class A digital apparatus meets all re-
quirements of the Canadian Interference- Causing Equipment Reg-
ulations. [Cet appareil numerique de la classe A respecte toutes les
exigences du Reglement sur le material broilleur du Canada.]
7.19 For Installations in New Zealand
Two-wire Connection:
The operation of this equipment on the same line as telephones or
other equipment with audible warning devices or automatic ring
detectors will give rise to bell tinkle or noise and may cause false
tripping of the ring detector. Should such problems occur, the user
is not to contact Telecom Faults Service.