Specifications and EM120 Modifications

The EM120 has two sub-models in circulation- the EM120-00 and EM120-01. The EM120-01 is a RoHS-compliant version of the EM120-00. There are no other differences between these two versions. Currently, only the EM120-01 is being manufactured.

Device specifications are presented in the table below.



Ethernet interface

10BaseT Ethernet, magnetics not built-in

Serial interface and I/O lines

CMOS-level; TX, RX, and 9 additional I/O lines with RTS, CTS, DTR, DSR implemented in application firmware

Routing buffers size

12Kbytes x 2*

Maximum load current of I/O lines


Power requirements

DC 5V, +/- 5%, app. 50mA

Operating temperature

-10 to +70 degrees C

Operating relative humidity


Mechanical dimensions (excl. leads)

App. 35x27.5x9.1mm


Tube, 10 modules/tube

* Maximum possible buffer size. Actual size may be smaller depending on how much RAM is "consumed" by the firmware

Note: 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.