Audio Monitoring - Scanning

This application makes it possible to silently monitor preselected stations in a sequence. The green LED in the DAK panel will show which station that is currently monitored. The guard in the Control Room can stop the scanning and listen to one particular station.

The example described consists of:

1 CRM-V w/D48; Dir no: 101
5 IP Substations; Dir no: 111-115

Operation

To silently monitor multiple stations, press the Scanning DAK. The system will start to monitor in rotating order.
To stop the scanning, press the Scanning DAK again.
To stop the scanning and listen to a particular station, press the Monitoring DAK + station DAK.

DAK Programming

The CRM has these DAK keys configured:

DAK5-9 = Substation(111-115)
DAK17 = Monitoring (9547)
DAK18 = Scanning (9548)

Directory & Features

Create these new numbers:

9547 - Feature 95/2 - Display text: Monitoring
9548 - Feature 52/0 - Display text: Scanning

Simplex Conference

Conference number 1 - Monitoring - Deafult member: 101 Control Room
Conference number 2 - Scanning - Default member: 101 Control Room

Event Handler Programming

Event 1 - Monitoring: Turn on/off the green and red LED in the monitoring button. Stop scanning (reset scanner timer, turn off LEDs in scanning DAK and reset "Scanning active" UDD 501) in case monitoring is turned on during scanning.

Event Owner:	Stations w/UDP, Id: 1 (Control Room)
Event type:	15 – Event Trigger Feature
Subevent:	0
When change to:	ON or OFF
When related to:	Directory Number, Id: 9547
Action:	IND %1.phy %1.dak(I%2.dir) 1 3
	IND %1.phy %1.dak(I%2.dir) 2 3
	$ST L%1.dir W0 L9902
	IND %1.phy %1.dak(I9548) 1 2 OFF
	IND %1.phy %1.dak(I9548) 2 2 OFF
	WUDD 501 0

Event 2 - Scanning: Store the number of the first station to scan in the UDD 500. Start a timer that triggers the scanning loop.

Event Owner:	Stations w/UDP, Id: 1 (Control Room)
Event type:	15 – Event Trigger Feature
Subevent:	0
When change to:	ON
When related to:	Directory Number, Id: 9548
Action:	WUDD 500 111
	IF %udd(501)
	WUDD 501 0
	$ST L%1.dir W0 L9902
	IND %1.phy %1.dak(I9548) 1 2 OFF
	IND %1.phy %1.dak(I9548) 2 2 OFF
	$CONF L84 L8200
	STOP
	ENDIF
	WUDD 501 1
	$ST L%1.dir W1 L9902
	IND %1.phy %1.dak(I9548) 1 2 ON
	IND %1.phy %1.dak(I9548) 2 2 ON

Event 3 - Scanning: Scans station 111 to 115 with 2,5 sec interval. Uses UDD 500 as a counter. First clear all conferences, then turn on conference and feed for the next station, stored in udd 500. Increment udd 500 (next station), but if higher than 115, start over again with 111. The timer retriggers it self, 2,5 sec intervall.

Event Owner:	Stations w/UDP, Id: 1 (Control Room)
Event type:	21 – Event Timeout
Subevent:	0
When change to:	ON
When related to:	Directory Number, Id: 9902
Action:	$CONF L84 L8200
	$CONF L%udd(500) L8202
	$CONF_TALK L%udd(500)
	WUDD 500 %op(%udd(500),+,1)
	IF %op(%udd(500),>,115)
	WUDD 500 111
	ENDIF
	$ST L%1.dir W25 L9902

Event 4 - Monitoring: If the selected number is in the range 111-115, include the station in SX conference and make it feed the conference.

Event Owner:	Stations w/UDP, Id: 1 (Control Room)
Event type:	25 – Event Trigger w/User Parameter
Subevent:	2
When change to:	ON
When related to:	All
Action:	$CONF L84 L8200
	$DISCON_ST L%1.dir U0
	IF %op(%2.dir,>=,111)
	IF %op(%2.dir,<=,115)
	$SDT L8201 '%2.nam'
	$CONF L%2.dir L8201
	$CONF_TALK L%2.dir
	STOP
	ENDIF

Event 5 - Monitoring and Scanning: Conference members are indicated by flashing green LED in the DAK panel of the CRMV 101.

Event Owner:	Stations w/UDP, Id: 8 (All Stations)
Event type:	17 – Simplex Conference Member
Subevent:	0
When change to:	ON or OFF
When related to:	All
Action:	OWN r 101
	IND %2.phy %2.dak(I%1.dir) 2 3