15
EPO Connector
5.3 Network Management Card (Optional)
Network Management Card allows the UPS to communicate in a variety of networking environments and with
different types of devices. The UPS series has one available communication slot for NMC card or other optional card
to achieve remote management of the UPS through internet/ intranet. Please contact your local dealer for further
information.
5.4 USB for HID power device
The USB interface is equipped with the standard "Human Interface Device" (HID) protocol. Using this protocol,
various devices can be connected directly with the UPS system. Additional software (e.g., Winpower) is not required
for this purpose. Communication with the UPS system takes place using the integrated hard-ware controllers in the
connected devices
6. UPS Maintenance
6.1 UPS and Battery Care
For the best preventive maintenance, keep the area around the UPS clean and dust-free. If the atmosphere is very dusty,
clean the outside of the system with a vacuum cleaner. For long battery life, keep the UPS at an ambient temperature
of 25°C (77°F)
6.2 Storing the UPS and Batteries
When the UPS is intended to store for a long period, recharge the battery every 6 months by connecting the UPS to utility
power. The batteries charge to 90% capacity in approximately 4 hours. However, it is recommended that the batteries
charge for 48 hours after long-term storage.
6.3 Time to Replace Batteries
When LCD backlight turns to red, the screen displays “bTWK” and there is a continuous sounding, the battery may need
to be replaced. Please check the battery connection or contact your local dealer to order new battery.
WARNING:
Turn off the UPS and disconnect the utility power cord from the wall outlet.
Servicing should be performed by qualified service personnel knowledgeable of batteries and required precautions.
Keep unauthorized personnel away from batteries
Batteries can present a risk of electrical shock or burn from high short circuit current. The following precautions should
be observed:
1. Remove watches, rings, or other metal objects.
2. Use tools with insulated handles.
3. Do not lay tools or metal parts on top of batteries.
4. Wear rubber gloves and boots.
5. Disconnect the charging source prior to connecting or disconnecting battery terminal.
When replacing batteries, replace with the same type and number of batteries or battery packs. Contact your service
representative to order new batteries.
Do not dispose of battery in a fire. Batteries may explode when exposed to flame.
Proper disposal of batteries is required. Refer to your local codes for disposal requirements.
Do not open or mutilate the battery. Released toxic electrolyte is harmful to skin and eyes.
Note:
If you are not qualified service personnel to replace the battery, do not attempt to open the battery cabin. Please
call local dealer or distributor immediately.
6.4 Replacing UPS Internal Batteries
Follow the steps and Charts as below to replace batteries:
