Multi-Tech Systems MMV1600 Wire, Silence Suppression, Local Interface, ATV1/2LIFXO, ATV1/2LIFXSG

4.75db

V(1/2)OL8

-6.0db

4.0db

V(1/2)OL9

-6.75db

3.25db

V(1/2)OL10

-7.5db

2.5db V(1/2)OL11

-8.25db

1.75db

V(1/2)OL12

-9.0db

1.0db

V(1/2)OL13

-9.75db

0.25db

V(1/2)OL14

-

10.5db

-0.5db

V(1/2)OL15-11.25db

-1.25db

V(1/2)OL16

-12.0db

-2.0db

V(1/

2)OL17

-12.75db

-2.75db

V(1/2)OL18

-13.5db-3.5db

V(1/2)OL19

-14.25db-

4.25db

COMMAND

LEVEL

COMMAND

LEVEL

2-Wire

4-Wire

2-Wire

4-Wire

V(1/2)OL20

-15.0db

-5.0db

V(1/2)OL21

-15.75db

-5.75db

V(1/2)OL22

-

16.5db

-6.5db

V(1/2)OL23-17.25db

-7.25db

V(1/2)OL24

-18.0db

-8.0db

V(1/2)OL25

-18.75db

-8.75db

V(1/2)OL26

-

19.5db

-9.5db

V(1/2)OL27-20.25db

-10.25db

V(1/2)OL28

-21.0db

-11.0db

V(1/2)OL29

-21.75db

-11.75db

V(1/2)OL30

-

22.5db

-12.5db

V(1/2)OL31-23.25db

-13.25db

The output level gain needs to be set at the mux that is receiving

(hearing), this

will

change the volume level that the person at

the receiving mux hears. To increase the output level gain at the

transmitting mux will have no affect on the loudness heard by the

person at the receiving

mux.

MUX PDN

Talk

Sounds OL 2db

Louder Increase 2db

MUX

OL Sounds 2db Increase Louder

2db

Talk

Note

For the best results, increase or decrease both the local output level and remote input level settings by a small amount to change the volume level heard at the local voice/fax channel.

The default settings per configuration are as follows:
	Local		Remote
Configuration	IL	OL	IL	OL
FXS to FXO	6	9	5	2
FXS to FXS	3	12	3	12
E&M to E&M	5	14	5	14

	(4-Wire)
Voice/Fax Channel	The Voice/Fax Channel Silence Suppression command keeps
Silence Suppression	moments of silence from using up bandwidth on the composite			link. Typically, a voice
conversation is 50 to 60% silence. Silence		V(1/2)SS	suppression is helpful when using a slow composite link
speed	such as 19,200 bps. The higher the command level (e.g.,			V1SS2), the
greater the silence suppression. The range of the			command is from 0 to 2. When silence suppression is set to
zero,	all sound passes through the link, even silence. Silence			suppression
is active when there is no activity on the voice/fax			channel. Increasing the setting	increases the volume
necessary	for sound to be sent over the link.
Voice/Fax Channel	The Voice/Fax Channel Local Interface command configures
Local Interface	the local voice/fax channel interface. The V1LIFXO command			sets voice/fax channel
1 on the local MultiMux for an FXO		V(1/2)LI	connection. When the local MultiMux is configured for FXO,
the	remote site has to be configured for an FXS interface. When the			l o c a l
MultiMux is configured for an E&M interface, the E&M type			has to be determined, whether dial or wink is going
to be used,	and whether the connection is 2-wire or 4-wire. For example, to			c o n f i g u r e
local voice/fax channel 1 for E&M type 1 which is			very common in the U.S., wink-start E&M signaling and a 2-
wire	connection, the command would be V1LIE&M1W2. The Local			C h a n n e l
Interface command are as follows:
	ATV(1/2)LIFXO	FXO Interface	Connects to station
	side of PBX.
	ATV(1/2)LIFXSG	FXS w/Ground	Connects a single
Start Line	telephone/fax with a			ground start line to the
			mux.