558 List of terms
553-3202-210 Standard October 1998
SDI port
This is used for the optional sharing features that allow the IPE Module or
the Application Module console to access Meridian 1 administration and
maintenance programs.
Stand-alone System Interactive Diagnostics (SSID)
A set of diagnostic tools that provide confidence tests on various IPE
Module or Application Module hardware components.
terminal number (TN)
The physical address of a device (for example, telephone set, trunk, and
attendant) on the Meridian 1 PBX. The TN is composed of the loop, shelf,
card, and unit IDs.
trunk
Trunks are the physical links, or circuits, that enable telephone
communication, such as the link between a PBX and the public central
office (CO). There are various trunk types, which provide services such as
Direct Inward Dialing (DID trunks), ISDN, central office connectivity (CO
trunks). Trunks can be analog or digital. Digital trunks use A/B signaling, or
D-channel signaling in the case of ISDN. Trunks are configured on the
Meridian 1 in Overlay 14.
Versa Module Eurocard (VME)
VME bus is an industry standard, high-performance, 32-bit computer bus.
Voice Response Unit (VRU)
A device that plays voice menus to a caller and responds to caller
instructions entered on a touch-tone phone. Also known as IVR or
Interactive Voice Response.