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HUAWEI AUX SL91 Auxiliary Interface Board System Auxiliary Interface Board

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HUAWEI AUX SL91 Auxiliary Interface Board System Auxiliary Interface Board

HUAWEI AUX SL91 Auxiliary Interface Board System Auxiliary Interface Board
HUAWEI AUX SL91 Auxiliary Interface Board System Auxiliary Interface Board

Large Image :  HUAWEI AUX SL91 Auxiliary Interface Board System Auxiliary Interface Board

Product Details:
Place of Origin: CHINA
Brand Name: HUAWEI
Model Number: AUX
Payment & Shipping Terms:
Minimum Order Quantity: 1pc
Price: $100-$200
Packaging Details: 1pc into a spare inner foam carton and pack with exteral wooden carton
Delivery Time: 3-7 work days
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 500pcs/week

HUAWEI AUX SL91 Auxiliary Interface Board System Auxiliary Interface Board

Description
Type: BTS Products Status: Stock
Product Name: HUAWEI AUX Shipping Term: DHL,Fedex,UPS,EMS,AIR
Condition: Brand New Warranty: Six Month
High Light:

AUX SL91 Auxiliary Interface Board

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HUAWEI AUX SL91

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AUX SL91

    HUAWEI AUX SL91 Auxiliary interface board System Auxiliary Interface Board

 

Product Description:

The functional version of the AUX is SL91.

 

Functions and Features:

The AUX provides the system with one orderwire phone port, one synchronous data port, one asynchronous data port, and one four-input/two-output external alarm port.

 

Table 1 lists the functions and features that the AUX supports.

Table 1 Functions and features

Function and Feature Description
Orderwire phone port 1
Synchronous data port

1

The port transmission rate is 64 kbit/s and its specifications comply with ITU-T G.703.

Asynchronous data port

1

The transmission rate of the port is equal to or less than 19.2 kbit/s and the interfacing level complies with RS-232.

External alarm port Four inputs and two outputs
Hot swapping Supported
Queries of the board power consumption Supported
Power monitoring Supported

 

Working Principle:

The AUX consists of the orderwire unit, logic control unit, and clock unit.

Functional Block Diagram

Figure 1 Functional block diagram of the AUX

Power Supply Unit

Receives the +3.3 V power supply from the backplane and supplies it to the other units on the AUX.

Receives and shuts down control signals.

Orderwire Unit

Supports the input of four channels of alarms.

Supports the output of two channels of alarms.

Provides one orderwire port.

Provides one 64 kbit/s synchronous transparent data port.

Provides one 19.2 kbit/s asynchronous transparent data port.

 

NOTE:

The 64 kbit/s synchronous data port can transparently transmit orderwire byte. One port, however, can implement only one of the two functions: 64 kbit/s synchronous data port and transparent transmission of orderwire byte.

Logic Control Unit

Provides an interface with the CPU unit and works with the CPU unit to implement the board control function.

Processes orderwire bytes and overhead bytes.

Processes clock signals.

Provides board status information.

Checks the status of the system control, switching, and timing board.

Checks the status of the clock.

Supports the switching of system clock reference sources automatically and by running specific commands.

Supports the detection and reporting of the key clock status of each board in the system.

Board Status Detection Unit

Detects board performance data such as board voltage.

Stores board manufacturing information.

Clock Unit

Provides clock signals to the logic control unit.

 

Front Panel:

There are indicators, management ports, and auxiliary ports on the front panel.

Front Panel Diagram

Figure 1 shows the appearance of the front panel of the AUX.

Figure 1 Front panel of the AUX

Indicators

Table 1 Status explanation for indicators on the AUX

Indicator State Meaning
STAT On (green) The board is working properly.
On (red) The board hardware is faulty.
Off

The board is not working.

The board is not created.

There is no power supplied to the board.

SRV On (green) The system is working properly.
On (red) A critical or major alarm occurs in the system.
On (yellow) A minor or remote alarm occurs in the system.
Off There is no power supplied to the system.

Auxiliary Ports and Management Ports

Table 2 Description of the auxiliary ports and management ports

Port Description Connector Type
F1/S1 Synchronous/Asynchronous data port RJ45
ALMI Alarm input port
ALMO Alarm output port
PHONE Orderwire phone port

The auxiliary ports and management ports use RJ45 connectors. The pin assignments for the ports, however, are different. Figure 2 shows the front view of an RJ45 connector.

Figure 2 Front view of an RJ45 connector

Table 3 provides the pin assignments for the F1/S1 port.

Table 3 Pin assignments for the F1/S1 port

Port Pin Signal
F1/S1 1 Transmitting asynchronous data signals
2 Grounding end
3 Receiving asynchronous data signals
4 Transmitting synchronous data signals (TIP)
5 Transmitting synchronous data signals (RING)
6 Grounding end
7 Receiving synchronous data signals (TIP)
8 Receiving synchronous data signals (RING)

For the pin assignments for the ALMI and ALMO ports, see Table 4 and see Table 5.

Table 4 Pin assignments for the ALMI port

Port Pin Signal
ALMI 1 The first external alarm input signal
2 Grounding end for the first external alarm input signal
3 The second external alarm input signal
4 The third external alarm input signal
5 Grounding end for the third external alarm input signal
6 Grounding end for the second external alarm input signal
7 The forth external alarm input signal
8 Grounding end for the forth external alarm input signal

Table 5 Pin assignments for the ALMO port

Port Pin Signal
ALMO 1 The first external alarm output signal (+)
2 The first external alarm output signal (-)
3 The second external alarm output signal (+)
4 Connected in parallel with pin 1
5 Connected in parallel with pin 2
6 The second external alarm output signal (-)
7 Connected in parallel with pin 3
8 Connected in parallel with pin 6

External alarms are also called housekeeping alarms or relay alarms. OptiX RTN 910A provides external alarms.

Figure 3 shows an interface circuit for external alarm input. When the relay of the external system is switched off, the IDU interface circuit detects a high-level signal. When the relay of the external system is switched on, the IDU interface circuit detects a low-level signal. The board generates corresponding alarms based on the level signals detected by the IDU interface circuit. External alarm input mainly achieves access of the relay alarms generated by the environmental alarm generator.

Figure 3 Interface circuit for external alarm input

Figure 4 shows an interface circuit for external alarm output. When the external alarm output conditions are met, the equipment switches on or off the relay depending on the conditions that result in the alarm. External alarm output helps to provide equipment alarms to the centralized alarming device.


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HUAWEI AUX SL91 Auxiliary Interface Board System Auxiliary Interface Board 0
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Contact Person: Amy Lee

Tel: +8618573178646

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