Inter-Tel AXXESS Manual page 110

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Specifications

16-Port Single-Line Card (SLC-16 or SLC-16+)

4.117 With a U.S. system, the SLC-16 can support up to 16 on-premises AC-ringing single-

line devices. Like the 8-circuit SLC, it does not support off-premises stations and does not

have DID capability. The SLC-16+ is identical to the SLC-16 and provides no additional func-

4.118 With a European system, the SLC-16 can support up to 16 on-premises AC-ringing sin-

gle-line devices. Like the 8-circuit SLC, it does not support off-premises stations. The SLC-

16+ is required for supporting CLIP to single-line sets.

4.119 An SLC-16 cannot be installed in a card slot that is programmed for an SLC. The ports

must be specifically programmed for an SLC-16. However, if port programming is changed

from SLC to SLC-16, the existing eight circuits retain their individual programming and the

new circuits stay in the default state. If the port is changed from an SLC-16 to an SLC, the first

eight circuits retain their programming, but the last eight are lost.

4.120 The SLC-16 uses 72VDC to generate trapezoidal ringing waveforms, which have the

same effect as sine ringing waveforms. The card is capable of delivering a total ringer equiva-

lence number (REN) of 16.0 at a frequency of 20 Hz (e.g., 1.0 REN per circuit). No single cir-

cuit should exceed a REN of 5.0. If the card requires more than 16.0 REN total, use a larger

DC power supply (available from Inter-Tel). If a fax machine, modem, or single-line set does

not respond to the ringing provided by the SLC-16, consult the manual for that device and/or

contact Inter-Tel Technical Support.

4.121 A power supply is required for each SLC-16 because the cards are not designed to pull

talk battery, ring, or message lamp power from the system power supply. Power supplies are

available that support one card or up to four cards.

4.122 A 16-port Lamp Options Card (LOC-16) is also available to provide visual message

waiting capabilities for single-line sets equipped with message lamps. The single-line sets are

then configured in DB Programming to receive visual and/or audible message waiting indica-

MANUAL VERSION 11.0 – May 2008

The SLC-16 and LOC-16 can be used only with version 4.3 or later system software.

16-Port Single-Line Card (SLC-16 or SLC-16+)

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