Your Serial and Data Communications Expert
Shenzhen 3onedata Technology Co.,Ltd
NO.
NO.
NO.
NO.
Function
Function
Function
Function define
define
define
define
I/O
I/O
I/O
I/O
1
TX+ (send data +)
output
2
TX- (send data -)
output
3
RX+( receive data +)
input
4
NC(null)
5
NC(null)
6
RX-(receive data -)
input
7
、
8
NC(null)
2.
2.
2.
2. E1
E1
E1
E1 interface
interface
interface
interface 120
120
120
120
Ω
/RJ-45
/RJ-45
/RJ-45
/RJ-45 define
define
define
define
NO.
NO.
NO.
NO.
Function
Function
Function
Function define
define
define
define
I/O
I/O
I/O
I/O
1
NC(null)
2
RX+(receive data +)
input
3
RX-(receive data -)
input
4
GND(ground)
5
GND(ground)
6
TX+(send data +)
output
7
TX-(send data -)
output
8
NC(null)
DIP
DIP
DIP
DIP switch
switch
switch
switch setup
setup
setup
setup
((((
Function
Function
Function
Function setup
setup
setup
setup switch
switch
switch
switch SW1
SW1
SW1
SW1))))::::
There have a range of
DIP switch in the 7212
panel,
Time Slot is used to choose E1 time slot
,
SW1 is used to
function setup.
1.
1.
1.
1. C
C
C
Clock
lock
lock
lock choice
choice
choice
choice
NO.1
NO.2
ON
OFF
inside clock (from Model 7212 panel)
OFF
OFF
comeback clock (from E1 interface)
2.
2.
2.
2. Ethernet
Ethernet
Ethernet
Ethernet mode
mode
mode
mode choice
choice
choice
choice
NO.3
NO.4
NO.5
Ethernet mode
OFF
OFF
OFF
10/100M
、
full/half duplex
auto-negotiation
OFF
ON
OFF
10/100M auto-negotiation
half duplex