Nortel Networks RTU-292 - Manual (Page 102)

RTU-292 Operations Manual
The dipswitches on the VMM-100 module may be changed at any time during operation; the
DSP is constantly checking the states of these switches. The VMR and Noise Reduction modes
can be used individually or simultaneously. They are toggled off & on via standard DTMF
Operational Commands. See section 3.7 and Table 3-1.
Figure 7-3 VMM-100 Option Installation
JPS Communications, Inc. 7-8