ARIA SOHO Hardware Description and Installation Manual
Issue 1
BOARD INSTALLATION
Aug, 2006
29
4.2.1.3 MJ3 Pin Assignment (Alarm Detection and Relay Contact)
MJ3
CONNECTOR
PIN NUMBER
NO
SIGNAL NAME
1 N/A
2 ALARM-T
3 ALARM-R
4 Relay-T
5 Relay-R
RJ11
6 N/A
MJ4 PIN ASSIGNMENT (USB)
CONNECTOR
PIN NUMBER
NO
SIGNAL NAME
1
External Power (+5V)
2 D-
3 D+
USB Type B
4 GND
4.2.2 Switch, LED and Connector
4.2.2.1 SW1 Functions and LED indications
SWITCH
FUNCTION
OFF
ON (DEFAULT)
1-1
Administration Programming Access
Disable
Enable
1-2
Command/Event Trace (Software Testing)
Enable
Disable
1-3
Simplified Message Desk Control (SMDI – Voice Mail)
SMDI ON
SMDI OFF
1-4
Database Default on Power Up
Disable
Enable
Before programming the System, switch 1-4 should be ON and then power cycle OFF and ON to initialize the default
System database. Once the database has been initialized, switch 1-4 should be placed in the OFF position to protect
the database.
After putting the SW2 lithium battery switch ON to protect the RAM/RTC data, install the option boards to the MBU.
NOTE
The SW2-DIP switch should be turned ON to protect the System database in case of power
failure.
As needed, replace the batteries with the same or equivalent type recommended by the
manufacturer; the System will not function normally if the battery is incorrectly replaced.
Be sure to dispose of used batteries according to manufacturer instructions and/or local
government regulations.
The 4
th
pole of SW1 should be OFF to protect the features being programmed in Admin
programming after the System power up and initialization.
LED INDICATIONS
LED
MEANING
LD1 (Blue)
Periodic Toggle—ON, 300msec; OFF, 300msec.
LD2 (Blue)
In Use or Idle Status—ON, One or more Port(s) in use; OFF, idle
LD3 (Blue)
Timer—Flashes every 100msec.
LD4 (Blue)
LCD Active Updating—Flashes every 300msec.
LD5 (Red)
USB to PC Connection Status—ON, linked; OFF, not linked
