Can an E1-F card interconnect with an E1-M card

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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.

Other related questions:
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.

Can the E1-F card of an AR router interconnect with a CPOS card
A CPOS interface and an E1 interface can be connected in the following two methods but cannot be directly connected. CPOS interfaces are channelized POS interfaces which are mainly used to improve the capability of devices in aggregating lower-speed E1 links. Currently, a CPOS interface supports a bandwidth of 155 Mbit/s. 1. All E1 links are aggregated through the SONET/SDH transport networks to the CPOS interface of the router of the regional department. In this case, the CPOS interface and the E1 interface are indirectly connected. 2. The CPOS interface is connected to E1/T1 lines through a CPOS protocol converter.

Interconnection of the E1 card of AR routers
Methods of connecting the E1 interface of an AR router to other devices using cables are described as follows: Devices of operators provide the BNC connector in general while AR routers provide the DB9 female connector (cards with 1 interface or 2 interfaces) or the RJ45 connector (cards with 4 or 8 interfaces). The connection methods are as follows: - BNC connectors of operators' devices -- connectors of coaxial cables -- (BNC connector on the customer end -- E1 cables -- DB9 male connectors) -- DB9 female connectors of routers - BNC connectors of operators' devices -- connectors of coaxial cables -- (BNC connector on the customer end -- E1 cables -- RJ45 connectors) -- RJ45 connectors of routers Cables with BNC and DB9/RJ45 connectors are used.

Do AR routers support inter-card MP
In V200R005 and earlier versions: The devices do not support inter-card MP. In V200R006 and later versions: The devices support only the MP across interface cards of the same type. 1STM1, 1STM4, 4STM1, 1CPOS-155M, and 1CPOS-155M-W interface cards do not support inter-card MP. 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-card MP.

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.

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