AC8A OPTO 22, AC8A Datasheet - Page 9

• Manufacturer Part Number: AC8A
• Description: Computers, Interface Cards
• Manufacturer: OPTO 22

Specifications of AC8A

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Features: Half Duplex Modem Interface, 115VAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DATA SHEET
Form 043-061030
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: [phone] • (800) 321-OPTO • Fax: [phone] • www.opto22.com
Connecting the AC8 to the Optomux Network
or B2 (analog) brain boards on a RS-422/485 serial communication link.
Connecting a Modem to the AC8
Connecting the AC8 to the Optomux Network is described below. “Optomux Network” refers to one or more B1 (digital)
Follow these steps to connect the AC8 to an Optomux network:
1. Locate the +TO (+ To Optomux), -TO (- To Optomux), +FO (+ From Optomux), -FO (- From Optomux), and COM terminals. (There
2. Locate the corresponding terminal on the Optomux board. The labels on the Optomux board are: +TH (+ To Host), -TH (- To
3. Wire the AC8 to the Optomux network by connecting two twisted pairs of wire to the terminal strip. It is very important that
To connect a modem to the AC8, follow the steps below:
1. Connect the DB25 RS-232 cable to your modem.
2. The other end which will connect to the AC8, must be a male DB25 connector. The pinout of the AC8 connector is described
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Terminals
Number
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are two terminals for the COM signal on the AC8, both are internally jumpered together.)
Host), +FH (+ From Host), -FH (-From Host), and COM.
the wires are twisted to negate possible noise signal on the wires.
below.
COM
Pin
AC8
+TO
+FO
20
-TO
-FO
2
3
4
5
6
7
8
1
Protective Ground
Receive Data
Request to Send
Clear to Send
Data Set Ready
Signal Ground
Data Carrier Detect
Data Terminal Ready
Transmit Data
+FH (From Host)
+TH (To Host)
Description
Terminals
Optomux
COM
-FH
-TH
TRADITIONAL ADAPTER CARDS
INTERFACES
STAND-ALONE
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