User`s manual

Troubleshooting Notices
IX
31
Vlll
30
S109 K56flex and V.90 Selection (default 1)
Use this register to disable 56K connections or to choose between K56flex and V.90 pro-
tocols. The default setting (S109=1) will attempt K56flex and then V.34 depending
upon the central site modem being called and your phone line conditions.
S109 = 0 Disable all 56K connections
S109 = 1 K56flex only, V.90 disabled (default)
S109 = 2 V.90 only. K56flex disabled
Examples
at&fs38=0s109=0 This will disable ALL 56K connections
at&fs38=1s109=1s37=14 This will disable V.90 connections. The modem will try to
connect at K56flex rates with the V.34 upstream rate limited to 21.6K bps.
at&fs38=1s109=2 This will cause the modem to attempt a V.90 connection only. If
V.90 is not achieved, it will fall back to V.34 rates.
at&fs38=10s109=2 This will cause the modem to attempt a V.90 connection
at 40K bps. It will fall back to slower speeds if it cannot achieve or maintain this rate.
As a suggested “init string” in your communications program, use:
at&fw2s109=2s38=1s37=14
Declaration of Conformity
This equipment has been tested and found to comply with the limits for a Class B dig-
ital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio and
television reception, the user is encouraged to try to correct the interference by one or
more of the following measures:
• Reorient the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
CAUTION: CHANGES OR MODIFICATIONS NOT EXPRESSLY
APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE
COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIP-
MENT.
Telecommunications Regulations
The following three statements are provided in accordance with the Federal
Communications Commission (FCC) and CDOC (Canada) regulations. Please read
these statements carefully before installing your modem.
FCC PART 68 REQUIREMENTS
This equipment complies with Part 68 of the FCC Rules. On the bottom of this equip-
ment is a label that contains, among other information, the FCC Registration Number
and Ringer Equivalence Number (REN) for this equipment. If requested, this informa-
tion must be given to the telephone company.
Notices