Lucent Technologies 8.2 User Manual
DEFINITY ECS Release 8.2
Administrator’s Guide
Administrator’s Guide
555-233-506
Issue 1
April 2000
Glossary and abbreviations
1654
RS-232C
A physical interface specified by the Electronic Industries Association (EIA). RS-232C transmits and receives
asynchronous data at speeds of up to 19.2 kbps over cable distances of up to 50 feet.
asynchronous data at speeds of up to 19.2 kbps over cable distances of up to 50 feet.
RS-449
Recommended Standard 449
RSC
Regional Support Center
S
S1
The first logical signalling channel of DCP. The channel is used to provide signaling information for DCP’s I1
channel.
channel.
S2
The second logical signaling channel of DCP. The channel is used to provide signaling information for DCP’s
I2 channel.
I2 channel.
SABM
Set Asynchronous Balance Mode
SAC
Send All Calls
SAKI
See
sanity and control interface (SAKI)
.
sanity and control interface (SAKI)
A custom VLSI microchip located on each port circuit pack. The SAKI provides address recognition, buffer-
ing, and synchronization between the angel and the five control time slots that make up the control channel.
The SAKI also scans and collects status information for the angel on its port circuit pack and, when polled,
transmits this information to the archangel.
ing, and synchronization between the angel and the five control time slots that make up the control channel.
The SAKI also scans and collects status information for the angel on its port circuit pack and, when polled,
transmits this information to the archangel.
SAT
System access terminal
SBA
Simulated bridged appearance
SCC
1. See
single-carrier cabinet
.
2. Serial communications controller
SCD
Switch-control driver
SCI
Switch communications interface
SCO
System control office
SCOTCH
Switch Conferencing for TDM Bus in Concentration Highway