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Getting Started
CENTRAL OFFICE SWITCH
SETUP
3-6
Transmit clock B can be disconnected from pin AA/2 by
turning switch position 6 to OFF. Switch positions 5, 7, 8
should be left in their factory settings (Table 3-3).
Table 3-3: V.35 Transmit Clock Pinout
DIP
Switch Position
5
6
OFF*
ON*
OFF
Note: Extreme care should be taken to re-align the interface
card when inserting it in the UTA220.
The UTA220 is designed for easy programming and operation.
Using the front panel LCD display and push-button, the
UTA220 can be set up for one of the following central-office
switches:
• National ISDN-1
• NTI DMS100, BCS-30, BCS-31/32 or
• AT&T 5ESS, 5E4.2, 5E5, 5E6
Programming the UTA220 requires the following information,
which is provided by the telephone company:
• Switch type and version
• Terminal Endpoint Identifiers (TEI)
• Service Profile Identifiers (SPID)
• Directory Number (DN) strings (only supplied with National
ISDN and NTI DMS100 lines)
This information identifies the UTA220 to the telephone
company. Until the UTA220 has been programmed with this
information, the telephone company will not recognize the
terminal adapter, and calls cannot be placed.
Caution: For proper operation of the UTA220, enter
the following options exactly as given by the
telephone company.
UTA220/UTA220k
Pin Function
& Location
7
8
OFF*
ON*
AA/2*
TC
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