AVT MAGIC DAB, Hardware/Software Description

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PAGE 56
I n t e r f a c e s
A1.1 E1(2-Mbit/s) Interface
This interface supports up to 32 64-kbit/s channels using ITU recommenda-
tion G.703/G.704.
A1.1.1 Unbalanced E1 Interface
A1.1.2 Balanced E1 Interface
TAB. 3 PIN ASSIGNMENT: UNBALANCED E1 INTERFACE
Socket: Data in / Data out (BNC)
Pin Signal Electrical characteristics
1 Data - F1 in / F1 out Amplitude: 3 V
pp
Impedance: 75
Ω
unbalanced
Range: 100 m
2 Ground
TAB. 4 PIN ASSIGNMENT: UNBALANCED CLOCK INTERFACE
Socket: Clock in / Clock out (BNC)
Pin Signal Electrical characteristics
1 Data - T3 in / T3 out Amplitude: 0.5 ... 1.9 V
0p
(Input)
1.5 V
0p
(Output)
Impedance: 75
Ω
unbalanced
Range: 100 m
2 Ground
TAB. 5 PIN ASSIGNMENT: BALANCED E1/T1 INTERFACE
Socket: E1/T1 balanced (SUB-D, 9-pole)
Pin Signal Electrical characteristics
1 Shield Amplitude: 3 V
pp
acc. G.703
Impedance: 120
Ω
bal.
Range: 100 m
Clock:
Amplitude: 0.5 bis 1.9 V
0p
(Input)
1.5 V
0p
(Output)
2 RXD a Data in a
3 TXD a Data out a
4 RXCLK a Clock in a
5 TXCLK a Clock out a
6 RXD b Data in b
7 TXD b Data out b
8 RXCLK b Clock in b
9 TXCLK b Clock out b
2
1
5
1
9
6