RF Transceiver Problem
时间：04-04
整理：3721RD
点击：
Hey everyone!
I'm hoping that someone here can give me some advice. I have a remote control unit for a Leica Total Station that communicates via two Cirronet WIT2400 2.4ghz frequency hopping RF radio modules. One of the modules died recently. They are obsolete now and no-one carries them anymore, and the newer versions of those RF modules are extremely expensive and are also prohibited in the EU under their new Hazardous Substances laws. So I'm trying to find a cheap replacement option. According to the spec sheet, the WIT2400 uses CMOS as its logic. I'm trying to install some RS232 RF modules instead, but am having trouble getting them to communicate with the existing Leica hardware, which seems to only be capable of handling CMOS. Can anyone help me?
The existing RF modules are Cirronet WIT2400's. The datasheet can be found here:
https://www.digchip.com/datasheets/p...IT2400-pdf.php
The replacement RF modules are DORJI DRF4432D20I-043L1. The data sheet can be found here:
http://www.dorji.com/products-detail.php?ProId=30
I'll try and attach screenshots of the data specs if I can so you don't need to follow links.
After a lot of research (I know nothing about this sort of thing) it would seem that CMOS and RS232 don't seem to be compatible. So, I bought some signal converters (https://www.artekit.eu/products/accessories/ak-rs232/) but I'm not sure if TTL and CMOS are compatible either. Can anyone tell me if I am on the right track?
Also, the new modules run on no more than 5.5 volts, but my existing system runs on 6-12 volts. So I have installed some voltage converters as well. Will I need to use some sort of opto-isolator for the different ground voltages?
Any advice would be greatly appreciated.
I'm hoping that someone here can give me some advice. I have a remote control unit for a Leica Total Station that communicates via two Cirronet WIT2400 2.4ghz frequency hopping RF radio modules. One of the modules died recently. They are obsolete now and no-one carries them anymore, and the newer versions of those RF modules are extremely expensive and are also prohibited in the EU under their new Hazardous Substances laws. So I'm trying to find a cheap replacement option. According to the spec sheet, the WIT2400 uses CMOS as its logic. I'm trying to install some RS232 RF modules instead, but am having trouble getting them to communicate with the existing Leica hardware, which seems to only be capable of handling CMOS. Can anyone help me?
The existing RF modules are Cirronet WIT2400's. The datasheet can be found here:
https://www.digchip.com/datasheets/p...IT2400-pdf.php
The replacement RF modules are DORJI DRF4432D20I-043L1. The data sheet can be found here:
http://www.dorji.com/products-detail.php?ProId=30
I'll try and attach screenshots of the data specs if I can so you don't need to follow links.
After a lot of research (I know nothing about this sort of thing) it would seem that CMOS and RS232 don't seem to be compatible. So, I bought some signal converters (https://www.artekit.eu/products/accessories/ak-rs232/) but I'm not sure if TTL and CMOS are compatible either. Can anyone tell me if I am on the right track?
Also, the new modules run on no more than 5.5 volts, but my existing system runs on 6-12 volts. So I have installed some voltage converters as well. Will I need to use some sort of opto-isolator for the different ground voltages?
Any advice would be greatly appreciated.