Specifications

Chapter 1 Introduction ASMi-52L Installation and Operation Manual
1-8 Technical Specifications
The ASMi-52L modem consists of the following major modules:
Serial DTE interface – Prepares the digital data coming from the DTE into a data stream
for the modem glue logic. In addition it translates the data from the
modem glue logic into digital data to be sent to the DTE.
Internal oscillator – Serves as a source of internal clock for the ASMi-52L unit.
Modem glue logic module – Processes the data from/to the SHDSL interface module.
SHDSL line interface – Translates the received and transmitted data from the SHDSL line
to the DTE interface, and vice versa.
Power supply – Provides 1.8V, 2.5V, 3.3V, 5V and -5V voltage to the ASMi-52L internal
elements.
CPU – Controls the ASMi-52L operation.
10/100BaseT switch – For four 10/100BaseT ports, functions as a switch. Provides LAN
connection to the SNMP management station or Telnet host.
LEDs and terminal interface – Provides modem status information via LED indicators on
the front panel, and communicates with the supervisory terminal.
1.4 Technical Specifications
Line Interface
Type
2/4-wire unconditioned dedicated line
Line Coding
TC-PAM
Range
See Table 1-1
Impedance
135Ω
Connector
RJ-45
Protection
ITU K.21, UL60950
DTE Interface
Data Rate
See Table 1-2
Connector
• X.21: 15-pin, D-type, female
• V.35: 34-pin, female
• 10/100BaseT: RJ-45
Interface
V.24 (RS-232)
Terminal
Control Port
Type
DTE/DCE
Format
8 bits, no parity
Baud Rate
9.6, 19.2, 38.4, 57.6, 115.2 kbps
Connector
9-pin, D-type female
Ethernet Port
Interface
10/100BaseT
Connector
RJ-45 (4 connectors in 4 Ethernet version)