The OSN7500 Does Not Transparently Transmit E1 Bytes
Jul. 17, 2018
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The OSN7500 does not transparently transmit E1 bytes, causing the business phone to fail.
The OSN7500II adopts the N3DX1 board and is equipped with official telephones. The C to D official telephones are normal, the E to F official telephones are normal, the official telephone calls between B and C, D, E and F are not available, and the business between C, D and E and F is normal. The phone is unreachable. The networking diagram is as follows:
Processing
1. Check the configuration of the official telephone of the whole network. The A3 station does not have the N3DX1 board. The official telephone configuration of other stations is normal.
2. Since the A station does not need to pass the official telephone number, the N3DX1 board is not configured. The E1 and E2 bytes of the A station need to be transparently transmitted. Because the OSN7500II conference telephone can only use the E1 byte, it is necessary to transparently transmit the E1 byte. .
3. Select station A: network element manager-communication-DCC management-DCC transparent transmission management: transparently transmit E1 bytes of 6-SL64-1 and 7-SL64-1, 8-SL64-1 and 12-SL64- After the E1 byte of 1 is transparently transmitted, the official telephone test is performed, and all network elements can normally pass the official telephone. As shown below:
Root cause
The main control board of the OSN7500II does not support the official function. You need to configure the DX1 board to implement the official telephone function. Because the A-site processing center node is not configured with the DX1 board, the service number of the A station is not available.
solution
The E1 byte of the central site A is transparently resolved.
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