APC SYMMETRA 990 Specifications download pdf (Page 2)

EPO Switch Wiring

The UPS must be connected to either a dry contact or a 24 Vdc

Emergency Power Off (EPO) switch.

The EPO circuit is considered Class 2 and SELV (Safety Extra Low

Voltage). A SELV circuit is isolated from primary circuitry through an

isolating transformer and designed so that under normal conditions, the

voltage is limited to 42.4 Vac peak or 60 Vdc. SELV and Class 2 circuits

must be isolated from all primary circuitry. Do not connect any circuit to

the EPO terminal block unless it can be confirmed that the circuit is

SELV or Class 2.

For installations in US.

– CL2Class 2 cable for general purpose use.

– CL2PPlenum cable for use in a vertical shaft or from floor to

floor.

– CL2R Racer cable for use in dwellings and raceways.

– CL2XLimited use cable for dwellings and raceways.

For installations in Canada.

– CL2RCertified, type ELC (Extra-Low-Voltage Control Cable).

– CL2XCertified, type ELC (Extra-Low-Voltage Control Cable).

Communication Cables

Side panel removal

Warning: Ensure Total Power Off before removing the

side panel (see Total Power Off procedure in the Safety

Sheet).

Note: Use 20-foot standard Cat 5 data cable (supplied). If the

cable length is inadequate, a longer Cat 5 cable, or couplers,

can be used (not supplied).

Note: If bottom routing is required, follow steps 1 to 5 below

to gain access to the communication cables. If not, proceed to

Connecting communication cables.



Unlock the right-side panel using key.



Depress the latches.



Pull out the panel.



Lift the panel at an angle away from the enclosure.



Route the communication cables through the front holes of the

enclosures. Exit the enclosures from the bottom or top as required.

Note: If your UPS has been installed between devices and

side panels cannot be removed, the Bypass Static Switch

Module can be removed to gain access.

How to connect communication cables



Connect the network communication cable.



Connect the XR communication cable.

See Also: Refer to the guide supplied with the battery

enclosure for further details on how to connect

communication cables between the UPS and the XR Battery

Enclosures.

Installation and wiring of optional

APC Maintenance Bypass Panel

Wiring overview

Input/Output Wiring of Ancillary Equipment

1 Internal Power

+24V Supply

2/3 Relay Coil 1

4 Ground

EPO Control for PSX PDU

Emergency

Power OFF

Switch

Keep EPO

wire routing

isolated and

use separate

EPO conduit

Output

Input

DC Input

(Optional XR)

1/2 Battery Breaker present

4 Ground

N/O EPO Control N/C EPO Control

3/2 Relay Coil 1

1 Internal Power

+24V Supply

8 Ground

7/6 Relay Coil 2

5 Internal Power

+24V Supply

3/4 Ext. battery fuse/Battery Breaker 1

(N/O position)

5/6 Ext. battery fuse/Battery Breaker 2

(N/O position)

7/8 Temp. sensor, ext. battery

9/10 Temp. sensor, ext. battery present

11/12 Iso. trafo temp. switch (N/C position)

13/14 Iso. trafo temp. switch present

Emergency shut-down with internal supply

TELLIG

NCE M

DUL

INT

LIG

E M

DOCUMENT STORAGE

unications











XR Communications

Port 1

Port 2

Display / Computer Interface

Display

Remote

Power View

Computer

Interface

Reset

Link-RX/TX

tatus

10Base-T

AP9606 PowerNet Network Adapter

System Power Supply

Battery Monitor





MBP

(optional

equipment)

Output

Power

Input

Power

Battery Enclosure

(Optional, 4 Max.)

EPO

AC Power

DC Power

Interface wiring

UPS

1 2 3 4

Comments to this Manuals

No comments

APC SYMMETRA 990 Specifications Page 2

Comments to this Manuals

Related products and manuals for Network switches APC SYMMETRA 990