RAD Data comm ASMi-52 Manuel D’Utilisation

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ASMi-52 Ver. 2.5 
Overview 1-1 
Chapter 1 
Introduction 
1.1 Overview 
ASMi-52 is an SHDSL modem that operates in full-duplex over 2/4-wire lines and 
offers a cost-effective solution for delivering digital data to customer premises over 
existing copper cables. ASMi-52 handles multiple data rates in the range of  
64–4608 kbps. The unit is available with a single data port or as a multiplexer with 
two data ports. The modem supports X.21, V.35, RS-530, E1 and T1 interfaces. In 
addition, ASMi-52 may contain an Ethernet/Fast Ethernet bridge with VLAN 
support (via management LAN port), or an IP router (IR-IP). 
ASMi-52 uses TC-PAM coding and complies with the ITU-T G.991.2 requirements, 
see page 
1-7
Certain multiplexer application combinations are possible. See Table 1-4 for the 
multiplexer applications. 
Versions 
DTE Interface 
ASMi-52 supports the following DTE interfaces: 
•  X.21 
•  V.35 
•  RS-530 
•  E1, as per G.704 
•  T1 
•  Ethernet/Fast Ethernet bridge with VLAN support (combined with management 
LAN port) 
•  IR-IP (IP router). 
The following combinations of interfaces can be multiplexed: 
•  V.35 + LAN 
•  E1 + LAN 
•  E1 + serial port (V.35, X.21, RS-530) 
Line Interface 
•  ASMi-52 for operation over a 2-wire line 
•  ASMi-52 for operation over a 4-wire line.