User manual
vi
Canadian Equipment Limitations
Before installing this equipment, users should ensure that it is permissible to be connected to the facil-
ities of the local telecommunications company. The equipment must also be installed using an accept-
able 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 deg-
radation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility desig-
natedbythesupplier.Anyrepairsoralterationsmadebytheuserto this equipment,orequipmentmal-
functions, may give the telecommunications company cause to request the user to disconnect the
equipment.
Usersshouldensurefor theirownprotectionthattheelectricalground connectionsofthepower utility,
telephone linesand internal metallic waterpipe system, ifpresent, are connected together. This precau-
tion may be particularly important in rural areas.
The Load Number (LN) assigned to each terminal device denotes the percentage of the totalload to be
connected to a telephone loop which is used by the device, toprevent overloading. The termination on
aloop may consist ofany combinationof devicessubject only tothe equipmentthat thetotal of theLNs
of all devices does not exceed 100.
The ringer equivalencenumber (REN) assigned to each terminal adapter isused to determine the total
number of devices that may be connected to each circuit. The sum of the RENs from all devices in the
circuit should not exceed a total of 5.0.
Warranty and Customer Service
ADTRAN will replace orrepair this product within five years from the date ofshipment if the product
doesnotmeetitspublishedspecification,orifitfailswhileinservice.Fordetailedwarranty, repair,and
return information, refer to the ADTRAN Equipment Warranty and Repair and Return Policy Proce-
dure (see the last page of this manual).
A return material authorization (RMA) is required prior to returning equipment to ADTRAN.
Forservice,RMArequests,ormoreinformation,seethelast pageofthismanual for the toll-freecontact
number.
The Industry Canada Certification label identifies certified equipment. This certification means
that the equipment meets certain telecommunications network protective, operational, and safety
requirements.TheDepartment of Commerce does notguarantee theequipment willoperateto the
user's satisfaction.
Users should not attempt to make such connections themselves, but should contact the appropriate
electric inspection authority, or an electrician, as appropriate.