Hach-Lange WTOS P-RTC - Manual (Page 10)

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General Information
2.5 Instrument overview
Figure 1 Base module RTC 24 V version .
Note: All components are pre-wired.
1 PE (protective earth) 5 sc 1000 connection: RS485 (CX1010-N031)
2 24 V 6 Battery compartment
3 0 V 7 CPU base module, consisting of Ethernet port with
battery compartment (CX1010-N000), CPU module with
CF card (CX1010-0021) and passive aeration element.
4 Automatic circuit breaker (ON/OFF switch for item 7 and
8 without fuse function). 8 Power supply module, consisting of bus coupler
(CX1100-0002) and terminal module 24V.