RTU-292 Operations Manual

Table 7-7 VMM-100 I/O CONNECTOR INFORMATION (P9)

Pin

Signal

1Audio Input (see specs above)

2Audio Output (see specs above)

3NR1; Logic Input; Low selects DSP Noise Reduction

4NR2; Logic Input; Low selects DSP Voice Modulation Recognition

5-5V; Supply Input (see specs above)

6+5V; Supply Input (see specs above)

7+12V; Supply Input (see specs above)

8NR3; Logic Output; Follows state of SW1-1; Low indicates default is NR on

9NR4; Logic Output; Follows state of SW1-2; Low indicates default is VMR on

10 Ground

Table 7-8 VMM-100 Switch Functions

SW1-1 FUNCTIONS

SW1-1,2

For future use; leave off

 

 

 

SW1-3, 4 FUNCTIONS

 

 

SW1-3

SW1-4

Threshold

On

On

1

(lowest)

Off

On

2

Factory Default

On

Off

3

 

Off

Off

4

(highest)

 

SW1-5, 6 FUNCTIONS

 

 

SW1-5

SW1-6

Hangtime

On

On

0.75 seconds

Off

On

1.25 Factory Default

On

Off

1.75

Off

Off

2.25

 

SW1-7, 8 FUNCTIONS

 

 

SW1-7

SW1-8

Delay

On

On

0 msec

Off

On

100 Factory Default

On

Off

200

Off

Off

300

 

 

 

 

JPS Communications, Inc.

7-10

Page 104
Image 104
Nortel Networks RTU-292 operation manual VMM-100 I/O Connector Information P9, VMM-100 Switch Functions