Exsys EX-47920 User manual

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EX-47920
RS232 to RS232 Isolator and Surge Protector
1. Introduction
Thank you for purchasing this RS232 (to RS232) Isolator and Surge Protector. It is de-
signed for your PC, workstation, thin client, or server to provide an instant isolation so-
lution for the RS232 serial devices. It provides a DB9 female connector (DCE, with 3-
wire signals, TXD, RXD, and GND) that can be connected directly to your PC’s RS232
port. An external 5V DC power source should be applied to its input DC jack. The pow-
er source can be supplied by either an AC power adapter or an USB-to-DC-Jack con-
version cable.
Features:
 Provides one RS232 to RS232 Adaption
 Supports up to 2,500Vrms Isolation for all RS232 Signals
 Supports 3 RS232 Signals (TXD, RXD, GND)
 Supports DB9 Female (DCE) to DB9 Male (DTE) Connector Conversion
 Supports Baud Rate up to 921.6 Kbps
 +5V DC External Power is Required, Powered by AC Adapter or USB Port with
and USB-to-DC-Jack Cable
 Compact Size for Critical Applications
 No Driver Required for All Operating Systems
2. Layout
9-pin female DSUB RS232 Connector
(configured as DCE, from Host)
9-pin male DSUB RS232
Connector (to Device)
Mini DC Jack connector
for 5V DC power Input

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RS-232 Isolator and Surge Protector
3. Accessories
Note: Since this isolator hardware unit should be powered by the external pow-
er source, please connect the 5V AC power adapter or the USB-to-Power-DC-Jack
Conversion Cable to make sure the unit works properly. If you are using the USB-to-
Power-DC-Jack Cable instead of the AC adapter, please make sure that the USB port
is at Host side (the same side as the DB9 Female connector), DO NOT connected to
the USB port at the device side (the same side as the DB9 Male connector), otherwise,
the unit won’t work and the DC power was passed though the isolation circuits so the
isolator will not function properly.
4. Installing the Isolator and Surge Protector
5V AC Adapter
USB to DC Power
Jack Conversion
Cable
RS232 to RS232 Isolator
and Surge Protector

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RS-232 Isolator and Surge Protector
1. Use static electricity discharge precautions.
Remove possible static discharge potential from any objects that the converter
may come in contact with before installation. This can be accomplished by touch-
ing a bare metal chassis rail after you have turned off the power.
2. Locate an unused RS232 port (with DB9 male connector, configured as
DTE), insert the DB9 female connector of the isolator on it
RS232 to RS232 Isolator
and Surge Protector
3. Installing RS232 cable
Connect the RS232 cable from the Isolator’s DB9 male connector to the RS232
device.
4. Connect the 5V AC Adapter or USB-to-Power-DC-Jack Conversion Cable
5. RS-232 Mode Male DB9 Assignments and Cable Wiring
DB9-Male Pin Assignment:
Serial 9 Pin D-SUB male connector (S1 and S2):
Pin Signal Pin Signal Pin Signal
1NC 4NC 7NC
2RXD 5GND 8NC
3TXD 6NC 9NC
NC = No connect

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RS-232 Isolator and Surge Protector
6. Specifications
DB9-Male Pin Assignment:
DB9(USB Adapter) DB9(Serial Device)
1 NC 1 NC
2 RXD 2 RXD
3 TXD 3 TXD
4 NC 4 NC
5 GND 5 GND
6 NC 6 NC
7 NC 7 NC
8 NC 8 NC
Type Specifications
Connectors
Number of Ports
RS232 Signals
Baud Rate
Power Requirement
Operating Temperature
Operating Humidity
DB9 Female, DB9 Male
1 RS232
TXD, RXD, GND
Up to 921.6Kbps
5V/100mA max.
0 to 608C (32 to 1408F)
5 to 95% RH