Operation

The following MLX options are required for proper operation.

• Headset Status --a button used to switch between handset and headset operation.
• Headset hang up --a button used to disconnect a call when in the headset operating mode.
• Autodial inside --a button lamp used to display set busy status.

The MLX-100 works with handset or headset use. If the handset is taken off hook the MLX-100 activates the handset audio only. When the set is busy while in the headset mode, the MLX-100 activates the headset jack and the 4-wire jack. In this mode, the handset must be on hook.
Recorder audio with optional beep tone and a busy closure is provided with either handset or headset mode.

Connections

The MLX-100 is equipped with the following jacks:

• Front connections

  • Handset --Connection for handset.

  • Headset --Connection for headset.

    

  
  

• Rear connections

  • Voice Terminal --Connects to the MLX voice terminal handset jack.

  • 4-Wire --
    1. Pair 1 = 600 ohm balanced transmit input.
    2. Pair 2 = 600 ohm balanced receive output.
    3. Pair 3 = no connection.
    4. Pair 4 = off hook output solid state polarized contact closure.
    
    

    JACK DESIGNATIONS J4 4-wire interface	DESIGNATION	JACK PIN #	NUMBER ON 103 BLOCK WITH 8-POS JACK	STANDARD WIRING COLOR CODE		PAIR
    	600 ohm balanced receive output (T)	1	3	white/orange		2
    	600 ohm balanced receive output (R)	2	4	orange/white		2
    	n/c	3	5	white/green		3
    	600 ohm balanced transmit input (R)	4	2	blue/white		1
    	600 ohm balanced transmit input (T)	5	1	white/blue		1
    	n/c	6	6	green/white		3
    	Off hook closure (-)	7	7	white/brown		4
    	Off hook closure (+)	8	8	brown/white		4

  • Power & Record Audio --
    1. Pair 1 = recorder audio.
    2. Pair 2 = off hook output solid state polarized contact closure.
    3. Pair 3 = no connection.
    4. Pair 4 = 48vdc power (either polarity).
    
    

    JACK DESIGNATIONS J3 Audio and power	DESIGNATION	JACK PIN #	NUMBER ON 103 BLOCK WITH 8-POS JACK	STANDARD WIRING COLOR CODE		PAIR
    	Off hook closure (-)	1	3	white/orange		2
    	Off hook closure (+)	2	4	orange/white		2
    	n/c	3	5	white/green		3
    	Analog audio output for recorder (R)	4	2	blue/white		1
    	Analog audio output for recorder (T)	5	1	white/blue		1
    	n/c	6	6	green/white		3
    	-48v battery (from AUX power)	7	7	white/brown		4
    	-48v ground (from AUX power)	8	8	brown/white		4

  • Remote Module --Input for the MLX101 busy module for off hook and set busy.

    

    
    

Beep tone

The beep tone generator produces a 200ms 1400hz tone every 15 seconds. The tone is audible to both parties. It can be turned on or off with the beep switch.

Specifications

MLX100
GENERAL	Size	7 3/4"L x 4 3/8"W x 1 3/8"H
	Operating voltage	48vdc
	Power consumption	16mA maximum
INCLUDED ITEMS	1ea. MA11 cable	2ft. non-coiled, modular handset plug to modular handset plug.