Siemens VNT-PS User manual

Siemens Industry, Inc.

Building Technologies Division

P/N 315-050491-0

INTRODUCTION The Model VNT-PS is used to isolate the ground of the VNT (Virtual Network Tunnel)

from the FireFinder-XLS system ground.

INSTALLATION

Remove all system power before installation, first battery then AC. (To power up, connect the

AC first, then the battery.)

Mounting The VNT-PS mounts with an attached bracket onto the VNT-MP using the hex nuts

supplied with the VNT-MP.

VNT-PS

SLOTS FOR

MOUNTING

Figure 1

VNT-PS with Attached Bracket

The VNT-PS installs on the left edge of the VNT-MP mounting plate. Loosen the two

nuts on the left side of the VNT that are fastened to the VNT-MP, then slide the slots

of the VNT-PS bracket onto the studs.Tighten the nuts to securely fasten the VNT-PS

bracket in place. Refer to Figure 2.

VNT-PS

SLOTS FOR

MOUNTING

VNT-PS

VNT

VNT-MP

STUDS

Figure 2

Mounting the VNT-PS to the VNT-MP

Power Supply for VNT

Installation Instructions

Model VNT-PS

Siemens Industry, Inc.

Building Technologies Division

Florham Park, NJ

Siemens Building Technologies, Ltd.

Fire Safety & Security Products

2 Kenville Boulevard

Brampton, Ontario L6T 5E4 Canada

P/N 315-050491-0

WIRING Figure 3 is an example of typical wiring for the VNT-PS.

GND FAULT

24V 12A FAIL

24V 4A FAIL

MODULE FAIL

HNET FAIL

CAN FAIL

RESET

POWER

PSC-12

GND

TB1

TB2

BATTERY

P9 P12

TB3

TB4

OFF

O—

P10

HNET/CAN

VIDEO

DO NOT USE

DIAGNOSTIC

ONLY

DIAGNOSTIC

ONLY

DO NOT USE

KEYBOARD

NOT

USE

NOT

USE

USB

SIDE

USB

SIDE

USB

SIDE

USB

SIDE

XND

ADDITIONAL 24V

NON-POWER LIMITED

ADDITIONAL 24V

NON-POWER LIMITED

L1+

BLK

RED

DO NOT USE

SUPERVISED,

NON-POWER

LIMITED

SUPERVISED,

NON-POWER

LIMITED

VNT-PS

BACK OF VNT

ETHERNET

MULTIMODE

FIBER SWITCH

VNT

XND

SUPERVISED,

NON-POWER LIMITED

SUPERVISED,

NON-POWER LIMITED

SECURE WITH TIE WRAP

TO LANCES INSIDE

THE ENCLOSURE

SECURE WITH TIE WRAP

TO LANCES INSIDE

THE ENCLOSURE

Figure 3

Typical VNT-PS Wiring to VNT

ELECTRICAL RATINGS

Special Application: The VNT-PS may only be used to connect PSC-12 (P/N 500-

033340) and VNT (P/N 500-650490).

Output Voltage: 24VDC

Output Current: 1.7A max

Input Voltage: Regulated 24VDC

No Load Current: 50mA

Input Current: 2.0A @ 24VDC max.

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