Xtreme X90-2S, Руководство пользователя и инструкция по установке

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5. Interface and Communication
5.1 Dry Contact Port
As shown in figure 5-1, the Monitor Module includes dry contact ports (
③
~
④
), Extra Comm. slot,
SNMP slot, LCD connection port, STS Power LED and serial communication ports (RS232 port, USB
port, RJ45 to RS232 port) on the front panel.
Figure 5-1 Front view of Monitor module
5.1.1 X1-Remote EPO Input Port
The Emergency Power off (EPO) function in UPS can be operated by an assigned remote contact.
Logic N.C. turns off the UPS.
X1 is the remote EPO input port. The port is shown in Figure 5-2 and described in
Table 5-1 .
Figure 5-2 Remote EPO input port
Table 5-1: Description of remote EPO port
EPO Logic Setting Position Description
Short X1.1 & X1.2 EPO is not activated when X1.1 & X1.2 shortened
Open X1.1 & X1.2 EPO is activated when X1.1 & X1.2 opened
EPO Logic setting is Normal Closed (N.C), EPO is triggered when pins 1 and 2 of X1 are opened.
Note:
1. EPO function activates shutdown of the rectifiers, inverters and static transfer switch. But it
does not internally disconnect the input power supply.
5.1.2 X4-Maintenance Bypass Switch State Port
X4 is the maintenance bypass switch port. The port is shown in Figure 5-3 and described in Table