Raisecom
Gazelle ST2028i (A) Hardware Description
5 Interface and module parameters
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Copyright © Raisecom Technology Co., Ltd.
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5.1.6 B(AM) output interface
Table 5-10 lists specifications of the B(AM) output interface.
Table 5-10
Specifications of the B(AM) output interface
Parameter
Value
Connector type
BNC (female) connector
Carrier frequency
1 kHz
Modulation ratio
3:1, 4:1, 5:1, 6:1 (configurable through software)
Output current
24 mA
Output voltage
3 to10 Vp-p (configurable through software)
Output impedance
50 Ω, posedge reference
Cable specifications
50 Ω coaxial cable
5.1.7 B(TTL) output interface
Table 5-11 lists specifications of the B(TTL) output interface.
Table 5-11
Specifications of the B(TTL) output interface
Parameter
Value
Connector type
BNC (female) connector
Electrical level
+5 V
Output voltage
5 V
Output impedance
50 Ω, posedge reference
Electrical features
TTL level
Cable specifications
50 Ω coaxial cable
5.1.8 B(TTL) input interface
Table 5-12 lists specifications of the B(TTL) input interface.
Table 5-12
Specifications of the B(TTL) input interface
Parameter
Value
Connector type
BNC (female) connector
Input impedance
50 Ω
Electrical features
TTL level