The code of CloudScaleLink (CSL) consist of:
First character name of the module: O - Odin (WIFI/Bluetooth), T - Thor (Ethernet version), Z - Zeus, etc.
Next two characters are for connection type:
GP stands for General purpose - this module comes without any cables so you have to solder them by yourself (RX-receive, TX-trasmit, GND-ground and +Vin/-Vin)
LE stands for Loose end - this means you get four cables that needs to be connected (RX-receive, TX-trasmit, GND-ground and +Vin)
HF stands for Housing Female - this means you get DB9 RS-232 cable with female connector
HF stands for Housing male - this means you get DB9 RS-232 cable with male DB9 connector
First character name of the module: O - Odin (WIFI/Bluetooth), T - Thor (Ethernet version), Z - Zeus, etc.
Next two characters are for connection type:
GP stands for General purpose - this module comes without any cables so you have to solder them by yourself (RX-receive, TX-trasmit, GND-ground and +Vin/-Vin)
LE stands for Loose end - this means you get four cables that needs to be connected (RX-receive, TX-trasmit, GND-ground and +Vin)
HF stands for Housing Female - this means you get DB9 RS-232 cable with female connector
HF stands for Housing male - this means you get DB9 RS-232 cable with male DB9 connector

