Did Trunk Card; Brief Description; 125 8-L; Majorcomponents - Mitel SX-200 Practices

9109-09&125-NA Issue1
Revision
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125 8-l
8
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DID TRUNK CARD
Brief Description
8.1- The DID Trunk Card (pn 9109-031~XXX) contains six l-way Direct Inward Dial
circuits. It plugs into the digital peripheral bay. One-Way Direct Inward Dialing (DID)
provides for direct access to PABX subscriber lines from the public telephone
network.
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DID Trunk Cards can be used in any digital peripheral bay high power (upper) slot. The
maximum number of these cards is four per bay. This provides a maximum of 24 ports
per peripheral bay.
The card measures 157.5 mm x 366.4 mm (6.2 in. x 14.4 in,).
Major Components
8.2 Major components in the DID Trunk Card are:
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Mite1 8962 Filter/Codec (one per trunk circuit)
0 Feed Reversal relay (one per trunk circuit)
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Alarm LED.
Facilities
8.3 The facilities provided by each trunk circuit are:
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Trunk activity LED
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Line protection
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0 2-wire / 4-wire conversion (external to internal)
* Analogto-Digital / Digital-t*Analog conversion (p-law)
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Immediate, Delay Dial or Wink Start supervision
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Direct Inward Dialing access to PABX subscriber lines
* Conformity with the EIA loss level plan for p-law compatible PABXs in North
America.