When an SA card connects to an E1 card, the protocol status cannot become Up. How do I solve the problem

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When an SA card connects to an E1 card through a protocol converter such as CHANNEL-BANK, the protocol converter and E1 interface must be configured to work in unchannelized mode before the protocol status becomes up.

Other related questions:
How to resolve the problem that the protocol state is not Up after an SA card interconnects with an E1 card
In scenarios where an SA card interconnects with an E1 card on the peer end through a protocol converter (such as CHANNEL-BANK), the protocol state can be Up after the SA card interconnects with the E1 card only when both the protocol converter and the E1 interface are set to unchannelized mode.

Can an E1-F card interconnect with an E1-M card
An E1-F card can interconnect with an E1-M card in the following scenarios: - The E1-M card works in E1 mode and the E1-F card works in unframed mode. - The E1-M card works in CE1 mode and the E1-F card works in framed mode. In addition, the E1-M card creates only one channel set, and the timeslots that are bound to the channel on the E1-M card are the same as those on the E1-F card.

Do E1 and SA cards support inter-board MP
In V200R005 and earlier versions: The device does not support inter-board MP. In V200R006 and later versions: The device supports inter-board MP only on interface cards of the same type. The 1STM1, 1STM4, 4STM1, 1CPOS-155M, and 1CPOS-155M-W interface cards do not support inter-board MP. The 1SA/2SA/8SA, 1E1/T1-M, 2E1/T1-M, 4E1/T1-M, 8E1/T1-M, 1E3/CE3/T3/CT3, 1E1/T1-F, 2E1/T1-F, 4E1/T1-F, 8E1/T1-F, and 1BST interface cards support inter-board MP.

Can the E1-F card communicate with the E1-M card
The E1-F card can communicate with the E1-M card in the following scenarios: -The E1-M card works in E1 mode and the E1-F card works in unframed mode. -The E1-M card works in CE1 mode and the E1-F card works in framed mode. Only one channel set is created on the E1-M card and binds the same timeslots as the E1-F card.

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