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

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ETHERLINK II - Repeater Manual
Page 13 of 106
The use of the Flash memory as the ROM provides an easy upgrade of the software.
xDSL modems
are powered from a grounded primary DC source (38 … 78 V) or remotely.
Modems are designed to be used in-doors under the following environmental conditions:
- temperature of ambient air
– from -5 … +45°C;
- relative air humidity
– from 5% … 85% at +25°C.
3.2 Main features of S-Access Etherlink_II devices
S-Access Etherlink_II modems represent the next generation of modems of the S-Access
Etherlink family and have the following features:
1. A new type of line encoding
– TC-PAM32 (TC-PAM16 is also supported).
2. Duplex data transmission over one symmetrical pair at 5.7 Mbit/s.
3. Simultaneous transmission of the TDM traffic and Ethernet data.
4. The 802.1q protocol.
5. Different ways of system configuration (for example, remote configuration of devices via
Telnet).
6. Embedded WEB interface.
7. The SNMP protocol.
8.
Possibility of storing several configurations in the device’s EEPROM in order to download
the previous settings of the system.
9. Two levels of system users: administrator and user, protected with passwords.
10. The use of the modern circuit printed boards, chips and components.
11. Extended reliability of the equipment.
3.3 PL and RL devices
From the mechanic point of view, the device represents a case made of shockproof polystyrene
to withstand harsh environmental conditions, the case containing the basic elements of the
device. The power supply unit represents an external power supply in the form of a plug.
The front panel contains the following connectors and LEDs: