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Aria-34e
Digital Key Telephone System
LED4 Basic digital keyset in-use LED
- on : at least one port of six(6) digital terminal is busy (in-use state).
- off : all six(6) digital terminal ports are idle state.
LED3 Display task changing (software testing purpose)
-
This LED will be turn on/off (toggle) when software tasks are changing.
LED2 Display event processing
-
This LED will turn on during event processing
LED1 Display system software operation
-
This LED will turn on and turn off at every 100 msec
4.5.10 S MEMORY EXPANSION MODULE UNIT (SMEMU) INSTALLATION
The SMEMU is a memory expansion module that locates on the MBU. The SMEMU contains a
Lithium dry cell battery to maintain memory in the event of a power outage or processor failure.
The battery is soldered to the SMEMU and connected to the circuitry by an on/off DIP switch.
Ensure that the DIP switch is moved to 'ON' before SMEMU installation.
The SMEMU expands the basic MPB RAM capacity to increase the following fields:
Increase SMDR record capacity from 100 to 2000
Increase ISDN CO message buffer from 0 to 1000
Increase ISDN DID conversion table form 0 to 10000
The SMEMU must be installed if the system is operating with Primary Rate ISDN installed.
Please refer to Figure 8.
4.5.11 PHASE LOCK LOOP UNIT-2 (PLLU2) INSTALLATION
The PLLU2 board must be installed on the MBU to synchronise with the network when the
ISDN boards are used (PRI, 2BRI, STIB). The PLLU2 locates on the MBU on connectors
dedicated for this purpose.
When the PRI, 2BRI or STIB cards are not installed, the PLLU2 is not used and a shorting
jumper strap must be installed across pin #12 and #13 of CN18 on the MBU. This causes the
system to generate internal clocking rather than synchronising from the ISDN network.
Please refer to Figure 8.
4.5.12 MODEM UNIT (MODU) INSTALLATION
The MODU is an internally mounted 2400baud modem used for remote access to the system for
system maintenance and PC-Admin programming functions. The MODU locates on the MBU
and is configured through programming. The MODU can be allocated to either a dedicated
station port or CO line port to enable dial in facilities.
Aria Communications Pty Ltd.
A.C.N. 090 723 925
Program 05.
4-16
Installation
Rev 1.3
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