Roland CM-500 - Page 49

47
Interface specifications
Parallel connector (in compliance with
specifications of Centronics)
Serial connector (RS-232C)
Signal Terminal Signal Pin Connection
number number number
NC 3 6 1 8 HIGH**
HIGH* 3 5 1 7 GND
NC 34 16 GND
GND 33 15 NC
HIGH* 3 2 1 4 NC
NC 3 1 1 3 HIGH*
30 12 GND
2 9 1 1 BUSY
28 10 ACK
27 9 D7
26 8 D6
GND 2 5 7 D5
24 6 D4
23 5 D3
22 4 D2
21 3 D1
20 2 D0
1 9 1 STROBE
Signal Terminal Signal Pin Connection
number number number
NC 25 13 NC
NC 24 12 NC
NC 23 11 NC
NC 22 10 NC
NC 2 1 9 NC
DTR 2 0 8 NC
NC 1 9 7 SG
NC 1 8 6 DSR
NC 1 7 5 CTS
NC 1 6 4 RTS
NC 1 5 3 RXD
NC 1 4 2 TXD
1FG
1
19
18
36
3.3K
100
+5 V
+5 V
=
=
*
**
1
14
13
25
Parallel
Standard In compliance with the specifications of Centronics
Input signals STROBE (1 BIT), DATA (8 BITS)
Output signals BUSY (1 BIT), ACK (1 BIT)
Level of input/output signals TTL level
Transmission method Asynchronous
Serial
Standard RS-232C specifications
Transmission method Asynchronous, duplex data transmission
Transmission speed 2400, 4800, 9600, 19200 (Selected using panel keys.)
Parity check Odd, Even, or None (Selected using panel keys.)
Data bits 7 or 8 bits (Selected using panel keys.)
Stop bits 1 or 2 bits (Selected using panel keys.)
Handshake DTR or XON/XOFF (Selected using panel keys.)