Tahoe 283, Руководство пользователя

Страница: 5 / 8

3
3. Status LEDs
On the front panel there are four LEDs indicating device status:
¡
WAN Link - when lit, indicated synchronization to the other
G.703 device
¡
WAN Act - blinks to signal the activity of the G.703 port
¡
LAN Link - when lit, indicates proper Ethernet connection
between the converter and the switch or other device
¡
LAN 100M - when lit, indicates successful negotiation of 100
Mbps transfer rate on the Ethernet port
¡
LAN Act - blinks to signal the activity of the Ethernet port
4. Technical Data
¡
processor:
ARM
¡
memory:
8 MB SDRAM
¡
MAC table size:
10 000 entries, automatic entry removal after 30s
¡
G.703 port:
unframed, 2048 kbps
balanced, 120
W
HDB3 line coding
-43 dB receiver sensitivity - up to 2000m reach
¡
dimensions:
200 mm (width) x 130 mm (length) x 45 mm (height)
¡
power supply:
15V, 400mA
external power supply included
¡
environmental conditions:
storage: temperature -20°C to 65°C
humidity 5 to 95%
operation: temperature 0°C to 50°C
humidity 0 to 85%
2
2. Interfaces
2.1. G.703 Interface
The G.703 interface is equipped with a RJ-45 connector having
following pinout:
The RX+ pin of the converter should be connected to the TX+ pin
of the other device, the RX- pin to the TX- pin, TX+ to RX+ and TX- to RX-
2.2. Ethernet Interface
The Ethernet interface is used to connect the converter to the
LAN. It may work at 10 or 100 Mbps and in either half or full duplex mode.
The choice between these modes is done automatically.
Converter should be connected to a switch using a straight patch-
cord and to a PC or a router using a cross-over patch-cord.
Pin
1
2
3
4
5
6
7
8
Signal
RX +
RX -
TX +
TX -
power
switch
power
connector
Ethernet G.703
O
I
Rear view of the converter
2
2.2
2.1
3
4