S-Access SA-REP-ETHERLINK_II-1DA-IP67, Руководство пользователя

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ETHERLINK II - Repeater Manual
Page 12 of 106
LTU
RGNo2
( remote
power)
RGNo2
( remote
power)
RGNo2
( local power) NTU
SHDSL SHDSL SHDSL
SHDSL
VLAN
Switch
Ethernet
Network
N2
Ethernet
Network
N1
Eth
ATS
G. 703 (E1) G. 703 (E1)
ATS
Management PC VoIP
VLAN
Switch
Ethernet
Network
N2
Ethernet
Network
N1
Management PC VoIP
INTERNET
Repeater Point Repeater Point Repeater Point
ETHERLINK_II ETHERLINK_II
SA_RC_ETHERLINK_II_4DSL-4E1-4ETH
SA_RC_ETHERLINK_II_4DSL-4E1-4ETH
Figure 3.1 An example of organization of a data communication channel using S-Access
Etherlink_II modems
Notations in the figure:

ATS: a private automatic branch exchange;

E1: a 2048-kbit/s digital flow structured according to ITU-T Rec. G.704;

Management PC: a personal computer used to configure the system;

VLAN Switch: a switch of Ethernet packets supporting the VLAN function (IEEE 802.1q);

VoIP: devices of IP telephony (VOICE over IP);

Ethernet Network: local Ethernet network;

ETHERLINK_II LTU: S-Access ETHERLINK_II line termination unit;

ETHERLINK_II NTU: S-Access ETHERLINK_II network termination unit;

RGNo2: S-Access ETHERLINK_II regenerator.
The devices of this family have different mechanic designs: S ub R ack
– a unit to be inserted into
a 19’’ AccessGain shelf;
M ini R ack
– a 1U (44.5 mm) unit to be inserted into a 19’’ cabinet;
S tand A lone
– a desktop unit;
IP -67
– a unit in a water-proof plastic or silumin housing (class IP-
67); XCVR
– a unit to be inserted into a hermetic steel housing.
The devices have the following possibilities for monitoring and management:

Local management and control of remote devices and regenerators
– VT 100;

Local management and control of remote devices and regenerators
– Telnet session;

Operation in complex networks under the unified management system
– support of SNMP.