Casella CEL CEL-368 - Manual (Page 82)

8. DIGITAL INTERFACE
Digital interfacing is achieved via the 18-way connector of the auxiliary
socket (illustrated in Figure 5. The following table shows the line use.
Table 1 Line use in the 18-way Lemo Connector
Pin N o Name Centronics Use RS 232 Use Other Use
1 INIT Event Active Event Active Event Active
2 POUT2 Data 3 Not Connected Unused
3 AC OUT Not Connected Not Connected AC Out
4 0 V 0 V Ground 0 V Ground 0 V Ground
5 +5 VL Not Connected +5 V +5 V
6 DC IN Not Connected Not Connected Ext Power
6 - 15 V DC
7 STROBE Data Strobe Not Connected Unused
8 POUT1 Data 2 DCD Unused
9 LOG DC Not Connected Not Connected Log DC
10 P BUSY Busy CTS Unused
11 POUT6 Data 7 RTS Unused
12 POUT7 Data 8 DTR Unused
13 SPARE2 Not Connected Not Connected Not Connected
14 POUT3 Data 4 RXD Unused
15 POUT0 Data 1 DSR Unused
16 SPARE1 Not Connected Not Connected Not Connected
17 POUT5 Data 6 Not Connected Unused
18 POUT4 Data 5 TXD Unused
Notes: Signals shown with are outputs from the 268/368,
Signals shown with are inputs to the 268/368,
Signals shown with are birectional controlled by the 268/368 software.
The spare Lemo pins 13 & 16 are currently not connected in the 268/368 but
may be connected in future versions.
RS 232 pins 10 & 11 are linked in the Lemo plug (RTS & CTS) and this link is
tested when determining whether the printout goes to a Centronics or RS 232
interface.
Pins shown in "Other Use" column as "Unused" are buffered or unbuffered CPU
port lines. Outputs will be either 0 V or +5 V CMOS Logic.
CEL-268/368 Handbook Page - 81