The Ringer Equivalence Number (REN)
The FCC Registration Label, found on the card, includes the REN. This number is a representation of the
electrical load that will be applied to your telephone line once the unit is plugged into your wall jack. The
telephone line serving your premises will not operate properly if the total ringer load exceeds the capability of
the telephone company central office equipment. That is, if too many ringers (or their equivalent) are
connected to the line, there may be insufficient energy to ring your telephones or activate other equipment. If
the ringer load is excessive, you may also have difficulty dialing telephone numbers.
Problems, Repair and Warranty
Should you experience trouble with this telephone equipment or for repair or warranty information, please
contact Digium, Inc. at +1 (256) 428-6000. If the equipment is causing harm to the telephone network, the
telephone company may request that you disconnect this equipment from the line network until the problem
has been corrected.
4. Industry Canada Statement
This equipment does not exceed Class A limits for radio noise emissions for digital apparatus, set out in Radio
Interference Regulation of the Industry Canada. Operation in a residential area may cause unacceptable
interference to radio and TV reception requiring
the owner
or operator to take whatever steps necessary to
correct the interference.
This product, when equipped with the X100M or X400M module, meets the applicable Industry Canada
technical specifications.
The Industry Canada label identifies certified equipment. The certification means that the equipment meets
certain telecommunications network protective, operations, and safety requirements as prescribed in the
appropriate Terminal Equipment Technical Requirements document(s). The Industry Canada 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. 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 a Digium authorized maintenance facility. 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.
The Ringer Equivalence Number (REN)
The Ringer Equivalence Number assigned to each terminal device provides an indication of the maximum
number of terminals allowed to be connected to a telephone interface. The termination on an interface may
consist of any combination of devices subject only to the requirement that the sum of Ringer Equivalence
Numbers of all the devices does not exceed 5.
Users should not attempt to make such connections themselves, but should contact the appropriate
electric inspection authority, or electrician, as appropriate.
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