Alpha ESS Storion-T50 Installation Manual page 20

Your Smart Energy
7 EMS COM port (reserved for
external device communication
with BMU)
8 Air conditioner COM port
9 PCS COM port
10 PV junction COM port
11 Dry contact port
12 EMS display screen
13 DB9 COM
14 Storage card
15 Burning port
16 COM pin board
NOTE: TOP BMU box (with EMS) can communicate with outside device, such as PCS,
Air conditioner, PV junction box, etc.
If the communication type is CAN, you can connect from the COM port (from Port 1 to
10) in TOP BMU box to the device by using regular net cables.
If the communication type is RS485, please connect to the RS485A and RS485B port in
TOP BMU box. Besides, the two corresponding COM ports in TOP BMU box should be
connected with each other.
No. Description
01
Dry contact of generator
02
03
Reserved
04
05
Dry contact of BMS fault
06
07
08
Reserved
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Product Description
23 Meter RS485A port
24 Meter RS485B port
25 Air conditioner RS485A port
26 Air conditioner RS485B port
27 PCS RS485A port
28 PCS RS485B port
29 PV Junction RS485A port
30 PV Junction RS485B port
31 Reserved
32 Reserved
33 Earthing point x 4
Figure 3- 8 Dry contact of TOP BMU
No. Description
12 Dry contact of Fire controller fault (+24V)
13 Dry contact of Fire controller fault (GND)
14 Dry contact of Fire fault (+24V)
15 Dry contact of Fire controller fault (GND)
16
17
18
Reserved
19
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