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New 64 Ports POTS Subscriber Board VASL UA5000 A64
$250.00 USD
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New 64 Ports POTS Subscriber Board VASL UA5000 A64
New Second-hand 64 ports POTS Subscriber Board VASL UA5000 A64
Product Description
The A64 board, a 64-channel analog service board, provides a 64-channel analog service port, and provides the BORSCHT function for the analog subscriber circuit.The service signals interact with the narrowband control board through the backplane, and the narrowband control board transmits the PSTN services upstream.
NOTE:The meanings of BORSCHT are as follows:
- B: battery
- O: overvoltage and overcurrent protection
- R: ringing
- S: supervision
- C: codec
- H: hybrid
- T: test
Functions
The A64 board has the following functions:
- All the 64 channels support the A/μ law.
- All of the 64 channels support 16/12KC charging.
- All of the 64 channels support polarity reversal.
- All of the 64 channels support 20 mA, 25 mA, and 30 mA feeder currents.
- The A64 board adopts the balanced ringing.
- The A64 board supports the built-in line test function.
The A64 board supports the following line test:
- The A64 board supports the loop line test.
- The A64 board does not support the circuit line test.
- The A64 board does not support the phone test.
- The A64 board does not support the call emulation test.
- The A64 board does not support the line capturing test.
- The A64 board does not support the automatic dialup test
Figure 1 External connections of the A64 board
Specifications
Front Panel
Table 3-1 Front panel of the A64 board
Port
Ports of the A64 board are located on the front panel and the backplane or transfer board.
Table 3-2 Port of the A64 board
Packaging&Shipping
- Trade terms: FOB,CIF,CFR,etc
- Price Terms:T/T,Western Union,Paypal,RMB
- Payment Terms: T/T in advance
- MOQ: 1 pc
- Port: Shanghai
- Lead time: Within 5-45 working days after receipt payment.(According to configuration)
- Shipment: Express, Air, Sea
- Sample availability: Yes (not free)
- Package information: Standard carton package with the original package
