Instruction manual

Voice Channel
Interface Modules
Only the DV-MUX3-E&M voice channelinterface boardrequires internal settings
that are used to select the signaling mode and the interface type, 2W or 4W. Fig-
ure 2-5 identifies the position of these switches.
Figure 2-5. DV-MUX3-E&M, Internal Settings
E&M Signaling
Mode Selection
The DV-MUX3-E&M module supports five E&M signaling modes: RS-464 Type
I, II, III and Type V, and British Telecom SSDC5. To help you determine the ap-
propriate signaling mode, figure 2-6 shows the equivalent signaling circuit in each
mode. The selection of the signaling mode is made by setting the two switches to
the appropriate position.
Table 2-3 lists the required settings.
Table 2-3. Selection of E&M Signaling Mode
Signaling Mode
Settings
SW2 Switch Position SW1 Switch Position
RS-464 Type I TYPE 1,3 TYPE 1,2,3
RS-464 Type II 2, SSDC5 TYPE 1,2,3
RS-464 Type III TYPE 1,3 TYPE 1,2,3
RS-464 Type V 2, SSDC5 SSDC5
BT SSDC5 2, SSDC5 SSDC5
Default setting is EIA RS-464 Type II signaling.
CHAPTER 2 - INSTALLATION
2-10 DV-MUX3 Installation and Operation Manual