AC7 OPTO 22, AC7 Datasheet - Page 3

• Manufacturer Part Number: AC7
• Description: Computers, Interface Cards
• Manufacturer: OPTO 22

Specifications of AC7

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Features: RS232 To RS422 Converter
• Interface: RS-422⁄485
• Module Type: Adapter Card
• Mounting Type: Protective Enclosure
• Voltage, Supply: 115 VAC ± 10 VAC @ 50⁄60 Hz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

DATA SHEET
Form 466-030613
CONNECT AC7
AC7 can be located up to 50 cable feet from the RS232 serial port.
REVERSING PINS 2 AND 3 ON AC7
modem. The jumpers are installed at the factory for use with a null modem cable.
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: [phone] • (800) 321-OPTO • Fax: [phone] • www.opto22.com
Connect the RS232 data connector on the AC7 to the serial port connector on your host computer using a null modem cable. The
A null modem cable can be fabricated from the following diagram. The AC7 end uses a standard 25-pin, male "D" connector.
The AC7 provides a set of jumpers that allows you to reverse pins 2 and 3. This is helpful if you are using a cable that is not a null
Installation (continued)
DB25 on PC end of cable
TX, pin 2 . . . . . . . . . . . . . . . . . . . . . . . . . RX, pin 3
RX, pin 3 . . . . . . . . . . . . . . . . . . . . . . . . TX, pin 2
Signal Common, pin 7 . . . . . . . . . . . . . . Signal Common, pin7
Pins 2 and 3 Not Reversed
Inside Sales: (800) 321-OPTO • Product Support: (800) TEK-OPTO • [phone] • Fax: [phone] • E-mail: [e-mail]
(Factory Installation)
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
]
A
B
C
D
E
F
Pin 2-3
Reverse
DB25 on AC7 end of cable
Pins 2 and 3 Reversed
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
STAND ALONE ADAPTER CARDS
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
]
A
B
C
D
E
F
Pin 2-3
Reverse
INTERFACES
TRADITIONAL
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