User Manual

E 5 2 7 D a t a s h e e t P a g e 2 o f 7
Headers
H1 ICP microprocessor programming
H2 Humidity sensor
H3 System interconnect
H4 PIR sensor
H5 ES1
H6 RS485 network header (see pinout below)
H7 System 5 header (see pinout below)
H8 System interconnect
H9 External temperature control sensor (see pinout below)
H6 Pinout
Pin Function Comment
1 Common GND
Min Nom Max
2 12VDC
10V 12V 14V
3 S5bus Communication bus
4 Dry Input Input
5 RS485B RS485 Twisted Pair
6 RS485A RS485 Twisted Pair
Figure 2 E527 Front/Back and External Headers