Lencore Spectra i.Net: Installation and Operations Manual - Manual (Page 51)

section 6
6.9 | ring down unit
Ring-down Unit
A ring-down unit is used to connect a
telephone trunk line to the MPI for telephone
paging. The ring-down unit acts as central
telephone office (co).
RING DOWN UNIT
A ring-down unit is used to connect a telephone trunk line
or unpowered analog telephone to the MPI for telephone paging.
The ring-down unit acts as central telephone office (co).
RING-DOWN UNIT SETTINGS
VIKING© MODEL DLE-300
Installation of the Viking© Model DLE-300 advanced line simulator
with Lencore’s Spectra i.Net® MPI board.
FRONT PANEL DIP SWITCHES
1 down
2 down
3 down
4 down
5 down
6 up
7 up
8 down
INTERNAL JUMPERS
JP1 installed
JP2 installed
JP3 installed
JP4 installed
JP5 uninstalled
JP6 installed
Remove internal jumper from JP5 and move it to JP6.
All other internal jumpers leave as is.
TELEPHONE PATCH CORD
Use a telephone patch cord to connect DEV-2 RJ11 to MPI RJ11 connector.
Use another telephone patch cord to connect DEV-1 to a single line telephone.
or
USER TELEPHONE SYSTEM
PBX--------\
Trunk Port1-----> to DEV-1 RJ11
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