Digital Equipment VAX 4000 Model 500A Installation Manual page 22

Each module cover has an identifying label at the top, which shows the option
number and module number.
XXXXX Option Number
-XX
MXXXX Module Number
-XX
The following sections tell you how to connect devices to the modules described
in this manual. Connections to other modules are described in the device
installation guides.
Section 7.1 — terminals and serial printers (CXA16 or CXB16 module)
Section 7.2 — parallel printers (LPV11 module)
Section 7.3 — synchronous modems (DSV11 module)
Section 7.4 — asynchronous modems (CXY08 module)
Section 7.5 — Ethernet device (H3604 console module)
Section 7.6 — Ethernet device (DESQA module)
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