Mitel MIVOICE OFFICE 250, Руководство по установке и администрированию

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Specifications
93
Digital Expansion Interface
This section describes the specifications of the optional Digital Expansion Interface (DEI) unit and
the modules that it supports—the Digital Endpoint Module (DEM-16) and the eight-port Single Line
Module (SLM-8).
DEI Unit
Physical dimensions of the DEI unit appear in Table 14 .
A green power (PWR) LED on the front of the chassis indicates whether the DEI is plugged-in to an
active electrical circuit. Also, three sets of LEDs show the status of the three module bays. The active
status of each bay is shown by a green online (ON) LED and a yellow BUSY LED. Three bays at
the back of the chassis accept DEM-16 modules, and the following connection interfaces are
provided:
• The system power cord socket with built-in fuse holder (fuse is 250 V, 2 A). Power supply
requirements appear in “Power Supply“ on page 61 .
• Two DB-15 connectors. The 15-pin D-subminiature socket connectors provide electrical interface
to the Mitel 5000 chassis and to either another DEI or an optional, external Enterprise Messaging
system.
• An earth ground lug.
Digital Endpoint Module
The Digital Endpoint Module (DEM-16) supports 16 digital telephones, and three DEM-16s can be
installed in a DEI.
The status for each DEM-16 is shown with LEDs on the faceplate of the module. When lit, a yellow
LED indicates that at least one circuit on the DEM-16 is BUSY, as printed on the module. When lit,
a green LED indicates the module is ONLINE. The online/Off-line status for each module also appears
on the Administrative Web Interface.
DEM -16 ports are programmed in DB Programming. For details, refer to the
MiVoice Office 250
Features and Programming Guide
.
Eight-Port Single Line Module Characteristics
Up to three SLM-8 modules can be installed in each Mitel Digital Expansion Interface (DEI) unit
attached to the HX Controller or CS Controller chassis.
The SLM-8:
Table 14: DEI Physical Dimensions
Dimension Measurement (Metric)
Length 14.50 in. (36.83 cm)
Width 17.00 in. (43.18 cm)
Height 01.75 in. (4.45 cm) (1 U)
Weight 09.00 lb. (4.08 kg)