Specifications

4
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
Storage Temperature
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
-20 to 85°C (-4 to 185°F)
1
EX-47290
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
power source can be supplied by either an AC power adapter or an USB-to-DC-Jack
conversion 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
6
5
9
1
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