DAM-3215
User’s Manual
Beijing ART Technology Development Co., Ltd.
DAM-3215 User’s Manual
V6.10
DAM-3216 Module
Overview of Module Function
DAM-3215 uses advanced optical isolation technology, to protect the RS-232 serial interface device, and
avoid to damage the RS-232 equipment by the reason of ground loop voltage, surges, lightning, static
electricity, hot swap and other harsh environment.
DAM-3215 can effectively absorb the electrostatic and electromagnetic interference, protect devices
RS-232 interface.
DAM-3215 uses isolation technology, it can completely isolated electrical of the RS-232 devices and the
circuit of the ground, make the electrical signals of one side into the optical signals, then transmitted to
the other side, and last changed it to the electrical signals, thereby protecting communications equipment
to avoid the damage because of the interference of the power ground loop and surges, improve the
reliability and stability of communication system.
Module Structure
Module Features
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Interface: compatible with EIA RS-232 and CCITTV.24 asynchronous protocol
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Transfer Mode: asynchronous full-duplex, transparent
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Isolation Voltage: 500V or 2500V continuous pulse
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Communication Speed: up to 38.4Kbps
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Power: RS-232 port supplies power (TXD, RTS, or DTR)
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Dimension: 63mm × 33mm × 17mm
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Operating Environment: -40 ℃ to 85 ℃, relative humidity 5% to 95%
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DAM-3215 User’s Manual
V6.10
Connector
RS-232C DTE pin assignment
DB9(PIN)
RS-232C Interface
1
Protective earth
2
Sending data, TXD
3
Receiving data, RXD
4
Data terminal ready, DTR
5
Ground (GND)
6
Data unit is ready, DSR
7
Request to send, RTS
8
Clear to send, CTS
9
Ringing RI
RS-232C DCE pin assignment
DB9(PIN)
RS-232C Interface
1
Protective earth
2
Receiving data, TXD
3
Sending data, RXD
4
Data terminal ready, DTR
5
Ground (GND)
6
Data unit is ready, DSR
7
Request to send, RTS
8
Clear to send, CTS
9
Ringing RI
Common Faults and Exclusion Method
1. Data Communication Failure
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Check the RS-232 interface, whether the wiring is correct.
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Check the RS-232 output interface, whether the wiring is correct.
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Check whether the terminals are connected well.
2. Data loss or errors
¾
Check the transfer rate and the format are consistent of the data communications equipment at both ends.
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