Huawei RMS-SNMP01A User Manual page 20

RMS-SNMP01A SNMP Card
User Manual
Figure 3-5 AI/DI module
(1) Port for the SNMP card
(4) DIP switch
Table 3-3 Status of UPS run indicator connected to the AI/DI_1 port
Single
UPS/Parallel
System
Single UPS
Single UPS
Parallel system
Issue 08 (2020-01-09)
 Set the address of the AI/DI module to 3 (toggle switches 1 to 3 are used to set the address of the
AI/DI module, and toggle switch 4 is used to enable or disable the resistance for the RS485
interface). Toggle switches 1 and 2 are set to ON and toggle switch 3 is set to OFF, as shown in
Figure 3-5.
 COM_IN port is for communication. The baud rate is 9600.
 If both the CIM and independent AI/DI module are deployed, use the COM_OUT port to cascade
with the CIM.
 Electrical level is output from the AI/DI_1 port. Pin 3 of the AI/DI_1 port is DC 12 V, 54 mA, and
pin 8 of the AI/DI_1 port is GND, as shown in
 When the signal is unstable due to signal reflection which is caused by the long communication
route (greater than 200 m), set toggle switch 4 to ON for the farthest AI/DI module, as shown in
Figure 3-5. After the DIP switch settings are modified, power off and restart the AI/DI module for
the new settings to take effect.
 The AI/DI_1 port can connect to the UPS run indicator.
UPS Working
Modes
Bypass mode or no
power supply mode
Normal mode,
battery mode, mains
ECO mode, or
battery ECO mode
All UPSs work in
normal mode,
battery mode, mains
ECO mode, or
Copyright © Huawei Technologies Co., Ltd.
Figure 3-5.
(2) Port for DC 12 V power
(5) Cascading port
AI/DI_1 Port
Output Voltage
12 V
0 V
0 V
3 Installation and Basic Settings
Table 3-3 shows the indicator status.
(3) DC 15 V power input
(adapter required)
UPS Run
Indicator Status
On
Off
Off
12