Hardware Description
H20RN
-
2000.V2 Series Platforms
2 Architecture and Introduction
Version 1.3(Oct.2019)
Beijing Huahuan Electronics Co., Ltd.
9
DIP
Definition
Remark
K1_3/K1_4
ON/ON: selects 75
Ω
in the 2
nd
E1 channel
OFF/OFF: selects 120
Ω
in the 2
nd
E1
channel
impedance
selections
K1_5/K1_6
ON/ON: selects 75
Ω
in the 3
rd
E1 channel
OFF/OFF: selects 120
Ω
in the 3
rd
E1
channel
K1_7/K1_8
ON/ON: selects 75
Ω
in the 4
th
E1 channel
OFF/OFF: selects 120
Ω
in the 4
th
E1
channel
K2_
1/
K2_2
ON/ON: selects 75
Ω
in the 5
th
E1 channel
OFF/OFF: selects 120
Ω
in the 5
th
E1
channel
8-position DIP
switches of K2
control 5~8 E1
impedance
selections
K2_3/K2_4
ON/ON: selects 75
Ω
in the 6
th
E1 channel
OFF/OFF: selects 120
Ω
in the 6
th
E1
channel
K2_5/K2_6
ON/ON: selects 75
Ω
in the 7
th
E1 channel
OFF/OFF: selects 120
Ω
in the 7
th
E1
channel
K2_7/K2_8
ON/ON: selects 75
Ω
in the 8
th
E1 channel
OFF/OFF: selects 120
Ω
in the 8
th
E1
channel
K3_1
/
K3_2
ON/ON: selects 75
Ω
in the 9
th
E1 channel
OFF/OFF: selects 120
Ω
in the 9
th
E1
channel
8-position DIP
switches of K3
control 9~12
E1 impedance
selections
K3_3/K3_4
ON/ON: selects 75
Ω
in the 10
th
E1 channel
OFF/OFF: selects 120
Ω
in the 10
th
E1
channel
K3_5/K3_6
ON/ON: selects 75
Ω
in the 11
th
E1 channel
OFF/OFF: selects 120
Ω
in the 11
th
E1
channel
Summary of Contents for H20RN-2000.V2 Series
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