Xylem XL Series H-522 - Plus - Manual (Page 20)

2-6 Hardware Options and Installation
XL™ Series
Figure 2-4 Bubbler / Auxiliary Output connector pin out
2.2.6 Bubbler / Aux Port
Figure 2-4 is the Bubbler / Aux communication port, which is a 6-pin connector that interfaces
with the H-355 Gas Purge System and other W
ATER LOG products. The XL™ menu is setup to ®
give the user full control of the H-355 system. As other auxiliary devices are developed to
interface with the XL™, they too will be controlled through the XL™ menu system. This port
uses RS-485 hardware for communicating with the auxiliary devices. This provides noise
immunity and multi drop capability. As other devices are used, the cable will be daisy chained
from one device to the next.
The H-355 is normally used with the H-350XL because it has the built in pressure transducer.
However the H-355 may be used with any of the XL series data loggers and an H-350 Lite or
similar sensor to collect water level data.