Motorola 660AV - Manual (Page 11)

Specifications I/O Interfaces - 7
Serial Two RS-232/RS-422 serial ports
One mini DIN-8 port
One mini DIN-9 high performance modem port
230.4 Kbps maximum
High-Performance
Serial Port (Modem
Port)
Supports connection to analog, PBX, ISDN, facsimile (FAX), and
data telephone lines
Provides full-duplex telephone I/O at up to 14.4 Kbps
AppleTalk and V.22, V22.bis, V.29, and V.32 modem protocols
supported
Supports Apple HiPPort protocols
0.92 Mbps maximum, clocked externally
Ethernet
One Ethernet port; AUI-15 connector