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.

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