6
Communication interfaces
6.1
About communication interfaces
This section describes the communication features of the Eaton 91PS/93PS
UPS.
CAUTION
All the communication interfaces are SELV circuits. When connecting to
other equipment, make sure that you maintain this characteristic.
The UPS has the following communication interfaces:
1.
MiniSlot 1
2.
MiniSlot 2
3.
USB device (connection to computer)
4.
Communication cable conduit
5.
Emergency Power Off (EPO)
6.
Relay output
7.
USB host (connection to accessories)
8.
Signal inputs
9.
RS-232 port for service
Figure 26: Communication interfaces in the 15/20 kW standard and C-model
frames
© Eaton Corporation plc 2020. All rights reserved.
Revision: 006
Document ID: P-164000493
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Eaton 91PS/93PS UPS 8–40 kW
User’s and Installation Guide