Network; Control; D Term Series I Terminals And Equipment - NEC UNIVERGE SV8100 System Hardware Manual

UNIVERGE SV8100/SV8300
System Hardware Manual
6.5.2

Network

Time Division Multiplexing (TDM) allows transmission of data and
voice simultaneously over one communications medium. The
specifications that the UNIVERGE SV8100/SV8300 system uses for
switching, clock, data bus, and timeframe are shown below.
TDM Switching: PCM (µ Law/A-Law)
TDM Clock: 2.048 MHz
TDM Data Bus: 8 bit
TDM Timeframe: 125 µs.
6.5.3

Control

This section indicates the speed or capacity:
Control: Stored program with distributed processing
Central Processor: 32-bit microprocessor
Clock: 266 MHz
Interface Blade: 8- or 16-bit microprocessor
Optional Blades: 16- or 32-bit microprocessor
Multiline Terminal (TDM): 8-bit microprocessor
Multiline Terminal (IP): 32-bit microprocessor
IP Adapter: 32-bit microprocessor
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6.5.4 D series i Terminals and Equipment
The voltage, current, and ring signal for the D
terminals, Single Line Telephone equipment, and AP(A)-R( )/
AP(R)-R( ) Units are listed below:
Multiline Terminal
Voltage: -11 ~ -26 Vdc
Maximum Current: 250 mA
Acoustical characteristics meet Electronic Industry
Association (EIA) standard proposal SP-1286 and
standard EIA RS-470.
Single Line Telephone
Nominal Current: 25 mA
Ring Signal: 56 Vac RMS @ 20 Hz
AP(A)-R( ) Unit
Nominal Current: 30 mA
Issue No. 1.5
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