AVT MAGIC TH6 POTS, Руководство по аппаратному и программному обеспечению

Страница: 17 / 136

PAGE 17
S y s t e m D e s c r i p t i o n
2 S Y S T E M D E S C R I P T I O N
2.1 Mechanical Design
The MAGIC TH6 Telephone Hybrids incorporate a main board, a power sup-
ply with connector, a display, a keypad and 8 LEDs. All components are
mounted in a 19“ housing, 1 U high with the dimensions (W x H x D) 434 mm
x 44,5 mm x 252 mm. Both MAGIC TH6 systems can be installed as a table top
unit or, using the 19“ angles that are included in the delivery, in 19“ racks.
Sufficient ventilation is ensured by ventilation holes located at the button and
top of the housing.
Fig. 2 shows the rear view of MAGIC TH6 POTS, Fig. 3 shows the rear view
of MAGIC TH6 ISDN.
FIG. 2 REAR VIEW OF MAGIC TH6 POTS
FIG. 3 REAR VIEW OF MAGIC TH6 ISDN
2.2 Functionality
MAGIC TH6 is a digital telephone hybrid for six caller lines with various Au-
dio and control interfaces.
The complete signal processing is taken over by a digital signal processor. In
this way the following functions are carried out:
– G.711 Audio encoding and decoding
– six independent Echo Cancellers for each line
– six independent AGCs (Automatic Gain Control)
– six independent Expanders (to suppress spurious signals)
– control of the complete system (Keypad, Display, Relay, TTL, RS232,
LAN)