Specifications

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DSI SS7HD Network Interface Boards Programmer's Manual Issue 11
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Glossary
AIS Alarm Indication Signal (Blue alarm).
config.txt A text file used for protocol configuration.
CT Bus A time division multiplex (TDM) bus that provides 1024, 2048, or 4096
time slots for exchanging voice, fax, or other network resources on a
PCI or PCI Express (H.100), or CompactPCI (H.110) backplane. The
Enterprise Computer Telephony Forum (ECTF) developed the H.100
hardware compatibility specification that defined the CT Bus, a high-
performance mezzanine bus. The CT Bus works with both SCbus and
Multivendor Integration Protocol (MVIP) compatible products. The ECTF
implementation of the CT Bus for CompactPCI bus is called the H.110
standard.
ctu An example program that demonstrates how a user application can
interface with telephony user parts, such as ISUP and TUP.
DPC Destination Point Code. Identifies the address (point code) of the SS7
network node to which a Message Signal Unit (MSU) should be
directed.
DTI Digital Trunk Interface.
gctload A program that handles the initialization sequence and creates inter-
process communication.
HSL High Speed Link.
HSK Pigeon Point™ Hot Swap Kit. Available for Linux and Solaris only. A
proprietary operating system extension that allows a CompactPCI
board to be hot-inserted and hot-swapped.
INAP Intelligent Network Application Part. An SS7 stack layer that defines
the messages and protocol used to communicate between applications
(deployed as subsystems) in SS7 nodes. INAP uses the Transaction
Capabilities Part (TCAP). See TCAP below.
IS41 An ANSI signaling standard used in mobile networks.
ISUP ISDN User Part. A SS7 stack layer that defines the messages and
protocol used in the establishment and tear down of voice and data
calls over the public switched network, and to manage the trunk
network on which they rely.
Link A physical and logical connection between two signaling points.
Linkset One or more signaling links that are connected to adjacent signaling
points.
LIU Line Interface Unit.
main board A term used to refer to a CompactPCI board installed in the front of a
CompactPCI chassis. Typically, the main board works in conjunction
with an Rear Transition Module (RTM) that provides external
connectivity. See also RTM.
MAP Mobile Application Part (MAP). An SS7 stack layer supporting messages
sent between mobile switches and databases to support user
authentication, equipment identification, and roaming.