Advertisement
and then remove the wiring section of terminal block.
Please pay attention to the above operation sequence.
【E1 Port Connection】
The device provides 1 E1 port, interface type is BNC or RJ45,
interface impedance is 75 Ω unbalanced (BNC) and 120 Ω
balance (RJ45), supports interface 1500V electromagnetic
isolation protection. 120 Ω RJ45 pins are defined as follows:
Pin No.
Function definition
1.
NC (reserved)
2.
RX+ (positive received data)
3.
RX- (received data negative)
4.
GND (Ground)
5.
GND (Ground)
6.
TX+ (sending data positive )
7.
TX- (sending data negative)
8.
NC (reserved)
【RS-485/422 Connection】
The device provides 1 RS-485/422
interface in the form of DB25 female
head, which can be connected to the
RS-485/422
converter wire of DB25 male head to DB9 female head. The
interface supports 600W surge protection and 15KV static
protection. The pin definitions of RS-485/422 are shown as
follows:
RS-485:
Pin No.
Function definition
1.
GND
3.
485-
16.
485+
RS-422:
Pin No.
Function definition
1.
GND
2.
3.
14.
16.
【DIP Switch】
Signal
direction
defined as follows.
-
The settings of SW1 are as follows:
Input
Category
Input
setting
-
Impedance
-
BNC
Output
Grounding
Output
Clock
-
Loopback
Restore Factory Settings
device
through
the
Bit 1
ON
Bit 6
OFF
【Indicator】
The device provides LED indicators to monitor the device
Signal direction
working
troubleshooting; the function of each LED is described in the
-
table as below:
Input / output
LED
Input / output
PWR
Signal direction
-
RD-
Output
TD-
Input
RD+
Output
TD+
Input
The device provides 1 set of DIP switch for
impedance, BNC grounding, clock, loopback
and factory setting. The functions are
DIP bit
Set the DIP to
Set the DIP to
OFF
ON
Bit 1
120 ohm
75 ohm
Bit 2
No Grounding
OUT
grounding
Bit 3
No Grounding
IN Grounding
Bit 4
Internal Clock
Line
clock
Bit 8
No loopback
E1 Loopback
Bit 9
No loopback
No loopback
Bit 10
Reserved
Reserved
Bit 2
Bit 3
Bit 4
OFF
OFF
ON
Bit 7
Bit 8
Bit 9
OFF
OFF
OFF
status
with
a
comprehensive
Indicate
Description
ON
The
power
supply is
normally
OFF
Power supply is disconnected or
running abnormally
LED
Indicate
LOS
ON
AIS
ON
ERR
ON
TD
ON
RD
ON
Notice:
Whether AIS alarm is caused by a line fault, depends on
the actual situation. For example, when E1 port uses
non-similar HDLC protocol, when data communication
is not conducted, the whole 1-code signal must appear
on the line, and the AIS indicator will alarm. Just as
when the device was just powered on, the line not
port
connected to the E1 port was full 0 codes, and the AIS
light was not on. If the E1 port was carried on the outer
loop, then the E1 port was full 1 code, and the E1 light
recovery
would be naturally on.
【Specification】
Panel
RS-485/422
E1 Interface
Bit 5
OFF
Bit 10
Indicator
OFF
simplified
running
Power Supply
Power input
Terminal block
Power Consumption
Description
E1 interface receives no code
E1 interface receives full 1 code
E1 link interrupt
Data received successfully
Data sent successfully
1 RS-485/422, DB25 female
head
1 E1, BNC or RJ45, 75 Ω
unbalanced (BNC) and 120 Ω
balance (RJ45)
Power
indicator,
losing
synchronization alarm indicator,
upstream E1 link full 1-code
alarm indicator, E1 link interrupt
alarm indicator, data receiving
indicator from G.703 network,
data sending indicator to G.703
network
220VAC
Power supply outlet with switch;
Advertisement
