Mitel Sx 50 Dpabx Instructions Guide

General Description 
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DID TRUNKS 
E&M/TlETRUNKS DATA 
DEMULTIPLEXER 
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RECORDER  OFF-PREMISES 
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RS-232-C PORT 
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NIGHT BELL  I I 
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MUSIC SOURCE 
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TELEPHONE 
VX VOICE PROCESSOR 
SiiPERSEr 4 
TELEPHONE 
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DATA TERMINAL 
MAINTENANCE TERMINAL 
(ACCESS RMATS) 
SlJPERSET420 TELEPHONE 
LCD CONSOLE 
: Figure 5-I SX-50 System Peripherals 
100 5-2 Revision 0 9104-091-l 00-NA Issue 5  

6 
’ HARDWARE OVERVIEW 
General 
6.1 The Control Card/Control Card 2 contains the common control circuitry and card slots 
for the 10 peripheral cards. The peripheral cards communicate with the control 
circuitry via a common parallel address/data bus. The control circuit includes an 8-bit 
microprocessor which interfaces through its address/data bus to the following: . 
l DX Switching Matrix 
l Digital Signal Processor 
l Printer Interface 
l Attendant Console Interface (voice and data) 
l DTMF...

General Description 
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MAIN 
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TO AND FROM TO AND FROM 
PERIPHERAL DEVICES PERIPHERAL DEVICES...

u!A!J 
Hardware Overview 
Clot k Signal Generation 
6.4 The master clock for the PCM links is 16.384 MHz. All of the other PCM clock signals 
are derived from this. 
Digital Signal Processor 
6.5 The Digital Signal Processor (DSP) provides 8 channels of dual tone generators, 18 
conference channels and one tone detector. 
Tone Generation. The DSP generates all DTMF and call piogression’tones. 
Tone Detection. The Digital Signal Processor provides two types of tone detection: dial 
tone and test tone....

General Descrbtion 
100 64 Revision 0 
: ’ 
9104-091-l 00-NA Issue 5  

7 . 
SOFTWARE OVERVIEW 
General 
7.1 The SX-50 system software operates in two independent layers as described below. 
Call Processing Layer _ 
7.2 The Call Processing layer monitors all system activities and implements the features 
that have been selected. 
Peripheral Processing Layer 
7.3 This Peripheral Processing layer controls the interconnection of all devices attached 
to the system and feeds status information to the Call Processing layer. 
9104-091-lOO-NA Issue 5 Revision 0 100 7-1  

General Description 
100 7-2 Revision 0 9104-091-l 00-NA Issue 5  

8 . 
FEATURES 
General 
8.1 The features contained in the SX-50 MS55 software package are listed in Table B-1. 
Section 9104-091-l 05-NA, Features Description, provides a complete description 
of each feature, including special conditions and programming information. 
. 
Attendant Features. Attendant features can be programmed to suit the customer’s 
application. There are 14 Programmable Function keys on the Attendant Console 
keyboard and 18 functions that can be assigned. Refer to Section 9104-091-21...

General Description 
Table 8-l Feature List 
(continued) 
System Features 
Abbreviated Dial 
Auxiliary Attendant 
Automatic Diagnostics 
Automatic Night Service 
Automatic Ringdown Circuit 
Automatic Route Selection and Toll Control 
Automatic Station Release 
Background Music 
Behind PBX Operation 
Block Programming 
Break/Make Ratio and Pulse Rate 
Calibrated Flash 
Call Direction 
CDE Battery Backup 
Class of Service (COS) 
Conflict Dialing 
Consoleless Operation 
Contact Monitor 
Data Dump/Load...

Features 
Table 8-l Feature List 
(continued) 
Extension Features 
Account Codes 
Auto-Answer * 
Auto-Hold * 
Auto-Line Disconnect 
Automatic Callback - Busy 
Call Duration Display * 
Call Forwarding - Busy 
Call Forwarding - Busy/Don’t Answer 
Call Forwarding - Don’t Answer 
Call Forwarding - Follow Me 
Call Hold (Station) 
Call Split * 
Call Swap * 
Camp-On 
Clear All Features 
Conference 
Data Line Security 
Date/Time Display ** 
Direct Line Select * 
Direct Trunk Select * 
Display ** 
Distinctive...