The Cisco 8-Port Asynchronous HWIC and 16-Port Asynchronous HWIC use one
(HWIC-8A) or two (HWIC-16A) high-density 8-port connectors.
The 8-port asynchronous cable provides the high-density connector on one end
and eight RJ-45 plugs on the other.
RJ-45- to DB-25 modular adapters are used to convert the RJ-45 to a DB-25 DTE
or DB-25 DCE connection.