Optional Interfaces - Epson FX-870 Service Manual

Printer Features
should be shielded and connected to the chassis of the host computer and
the printer, respectively.
4. All interface conditions are based on TTL level. Both the rise and fall times
of each signal must be less than 0.2 us.
5. Data transfers must not be carried out by ignoring the ACKNLG or BUSY
signal. (Data transfers to this printer can be carried out only after con-
firming the ACKNLG signal or when the level of the BUSY signal is LOW.)

Optional Interfaces

The following interface cards can be used for this printer:
Catalog W
1-16
Interface
I
Serial I/F card (Type B)
32KB intelligent serial I/F card (Type B)
32KB intelligent parallel I/F card (Type B)
Coax interface (Type B)
I
Epson