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3

Switch Properties

IGMP Groups

256

Max. No. of VLANs

64

VLAN ID Range

VID 1 to 4094

Priority Queues

4

Serial Interface

Console Port

RS-232 (RJ45)

Input/Output Interface

Alarm Contact Channels

Resistive load: 3 A @ 30 VDC, 240 VAC

Power Parameters

Input Voltage

-24-24/-48-48/-HV-HV/-24-HV/-48-HV models: Redundant power modules

PT-7728-24 Series: 24 VDC (18 to 36 VDC)

PT-7728-48 Series: 48 VDC (36 to 72 VDC)

PT-7728-HV Series: 110/220 VAC/VDC (85 to 264 VAC, 88 to 300 VDC)

Overload Current Protection

Supported

Reverse Polarity Protection

Supported

Connection

10-pin terminal block

Input Current

PT-7728-24 Series: 2.38 A @ 24 VDC

PT-7728-48 Series: 1.12 A @ 48 VDC

PT-7728-HV Series: 0.49/0.26 A @ 110/220 VAC, 0.59/0.30 A @ 110/220 VDC

Physical Characteristics

Housing

Aluminum

IP Rating

IP30

Dimensions (without ears)

440 x 44 x 325 mm (17.32 x 1.73 x 12.80 in)

Weight

5900 g (13.11 lb)

Installation

19-inch rack mounting

Environmental Limits

Operating Temperature

-40 to 85°C (-40 to 185°F)

Note: Cold start requires minimum of 100 VAC @ -40°C

Storage Temperature (package included)

-40 to 85°C (-40 to 185°F)

Ambient Relative Humidity

5 to 95% (non-condensing)

Standards and Certifications

Safety

UL 60950-1

EMI

EN 55032 Class A, CISPR 32, FCC Part 15B Class A

EMS

IEC 61000-4-2 ESD: Contact: 8 kV; Air: 15 kV

IEC 61000-4-3 RS: 80 MHz to 1 GHz: 35 V/m

IEC 61000-4-4 EFT: Power: 4 kV; Signal: 4 kV

IEC 61000-4-5 Surge: Power: 4 kV; Signal: 4 kV

IEC 61000-4-6 CS: 10 V

IEC 61000-4-8 PFMF

IEC 61000-4-11 DIPs

Power Substation

IEC 61850-3, IEEE 1613