Ordering Info and Specifications

EM203 is available in several variations. EM203 model names start with "EM203", followed by two "Option Letters," and ending with a two-digit "Revision Number."

Options Letters

Option letters in EM203's model name convey meaning even when blank.

Option Letter 1

Option Letter	Description
D	Magnetic connector "DOWN"
Blank	Magnetic connector "UP"

Option Letter 2

Option Letter	Description
P	TiOS firmware preloaded
Blank	Serial-to-Ethernet firmware preloaded

Revision Numbers

Revision Number	Description
02	Serial-to-Ethernet firmware preloaded Non-programmable No support for TiOS firmware
03	TiOS firmware preloaded (unless otherwise specified) Tibbo BASIC/C-programmable Supports Serial-to-Ethernet firmware

Since the "02" revision does not support TiOS firmware, "EM203-P-02" would be invalid.

Examples of Valid Model Names

Model Name	Description
EM203-DP-03	TiOS firmware preloaded Magnetic connector "DOWN" Tibbo BASIC/C-programmable Supports Serial-to-Ethernet firmware
EM203-P-03	TiOS firmware preloaded Magnetic connector "UP" Tibbo BASIC/C-programmable Supports Serial-to-Ethernet firmware
EM203-D-02	Serial-to-Ethernet firmware preloaded Magnetic connector "DOWN" Non-programmable No support for TiOS firmware
EM203-02	Serial-to-Ethernet firmware preloaded Magnetic connector "UP" Non-programmable No support for TiOS firmware

EM203 and RJ203 Module Combination

EM203 can also be ordered in combination with the RJ203 module. To receive the two modules pre-assembled together, please specify "RJ203+EM203" on your order.

Model Name	Description
EM203 RJ203-02	RJ203 + EM203-02 module combination. Hardware revision "-02".
EM203 RJ203-03	RJ203 + EM203-03 (Tibbo BASIC/C-Programmable) module combination. Hardware revision "-03"

Specifications

Ethernet Interfaces	10/100BaseT Ethernet, Auto-MDIX, magnetics not built-in
Serial Ports	1 port, CMOS-level
UART Capabilities	Baudrates up to 115'200bps; none/even/odd/mark/space parity and 7/8 bits/character; full-duplex UART mode with optional flow control* and half-duplex UART mode with automatic direction control; RX, TX, RTS, CTS, DTR, and DSR* lines
LEDs	x4: red and green status LEDs*, yellow and green Ethernet status LEDs
Max. Load Current for Each I/O Line	10mA
Supported Network Protocols*	UDP, TCP, ICMP (ping), and DHCP
Nominal Power Supply Voltage (VCC Pin)	DC 5.0V, +/- 5%
Device Reset	Proper reset must be provided externally, RST pin has active HIGH polarity
Max. Operating Current	220mA
Operating Temperature	-20 to +70 degrees °C
Operating Relative Humidity	10-90%
Mechanical Dimensions (Excl. Leads)	30.1x18.1x5.5mm
Packaging	EM203 devices: tray, 30 modules/tray EM203+RJ203 module combination: tube, 10 modules/tube
RoHS Compliance	RoHS 3
CE Standards Compliance	Emission: EN 55032:2015+A11:2020 Class B Immunity: EN 55035:2017+A11:2020 EN 61000-4-2:2009 EN IEC 61000-4-3:2020 EN 61000-4-4:2012 EN 61000-4-6:2014 EN 61000-4-8:2010
ISED Standards Compliance	ISED Canada ICES-003 Issue 7 Class B ANSI C63.4:2014 amended as per ANSI C63.4a:2017
UKCA Standards Compliance	Emission: BS EN 55032:2015+A11:2020 Class B Immunity: BS EN 55035:2017+A11:2020 BS EN 61000-4-2:2009 BS EN IEC 61000-4-3:2020 BS EN 61000-4-4:2012 BS EN 61000-4-6:2014 BS EN 61000-4-8:2010

All specifications are for reference only. Tibbo assumes no responsibility for any errors which may appear in this manual, and does not make any commitment to update the information contained herein.