154 • Appendices DMC-1500
JD4 - 20 pin IDC - Amplifiers
1 Motor Command E 2 Amp enable E
3 PWM E/Step E 4 Sign E/Dir E
5 NC 6 Motor Command F
7 Amp enable F 8 PWM F/Step F
9 Sign F/Dir F 10 NC
11 Motor Command G 12 Amp enable G
13 PWM G/Step G 14 Sign G/Dir G
15 5 Volt 16 Motor Command H
17 Amp enable H 18 PWM H/Step H
19 Sign H/Dir H 20 Ground H
JD6 - Daughterboard Connector (60 pin)
Connects to DMC-1500 Main Board, connector J6
Cable Connections for DMC-1500
The DMC-1500 requires the transmit, receive, and ground for slow communication rates. ( ie 1200
baud ) For faster rates the handshake lines are required. The connection tables below contain the
handshake lines. These descriptions and tables are for RS-232 only. RS-422 is available on request.
Standard RS-232 Specifications
25 pin Serial Connector
Table describes the pinout for standard serial ports found on most computers.
PIN NUMBER FUNCTION
1 NC
2 Transmitted Data
3 Received Data
4 Request to Send
5 Clear to Send
6 Data Set Ready
7 Signal Ground
8 Carrier Detect
9 +Transmit Current Loop Return
10 NC
11 -Transmit Current Loop Data
12 NC
13 NC
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