Grandstream GDS3705 Product information

IP Audio Door System

GDS3705

The GDS3705 was built for users looking for a strong audio-only facility access and security monitoring solution that
can be deployed in environments of all sizes. This audio door system features dual microphones and HD loudspeaker

with advanced AEC to oer intercom functionality, can support SIP calls to IP phones and has a built-in RFID chip
reader and keypad for secured keyless or key entry. The GDS3705 comes equipped with a zinc alloy metal casing,
making it weatherproof and vandal resistant and oers alarm-in and alarm-out support for integration with existing
security devices. The GDS3705 integrates with Grandstream’s free management utility software, GDS Manager,
allowing RFID card information, as well as the device itself to be fully managed by this software. Thanks to its
integration with other Grandstream endpoints like the GXP IP phones, GXV video phones, and GS Wave mobile app,
the GDS3705 oers a complete end-to-end solution for access control, audio intercom, and security needs.

HD audio
options with up
to 1.5m of audio
input and 3m of
audio output

Built with a metal
casing to make it
weatherproof and
vandal resistant

Built-in RFID

chip reader for
keyless entry

Integrated PoE

to power the
device and
provide a network
connection

www.grandstream.com

Supports SIP
calls to IP phones

to facilitate
communication

Built-in dual
microphone and
HD loudspeaker
with advanced AEC

oers intercom

functionality

Network 10M/100M Auto-sensing

PoE PoE IEEE 802.3af Class3

Supply Voltage 12VDC /1A (AC power adapter not included)

SIP/VoIP Support Yes, broad interoperability

Voice Codecs G.711μ/a-law, G.722, DTMF (RFC2833, SIP INFO), AEC, ANS

Audio Input Integrated dual microphones up to 1.5m

Audio Output HD loudspeaker 2W, up to 3m

Built-in Key Pad 12+1 Metal keys with Blue LED backlight

RFID EM4100 (125kHz)

RFID Number Supported Up to 2,000 recommended

Input 2 Optocoupler Input, Vin < 15V, for door sensor or other low voltage devices

Output

Expansion Interface RS485, Wiegand (26 bits) input and output

Waterproof Certication IP66 (EN60529)

Vandal Resistance IK09 (IEC62262)

Temperature Range -30°C to 60°C

Mounting Wall-Surface, In-Wall

Dimension (HxWxD) and

Weight

Compliance

2 Relay, 125VAC/0.5A or 30VDC/2A, Normal Open or Normal Close, for electric
lock, light switch or other relative high voltage devices

In wall 217mm x 120mm x 11.6mm; On Wall 173mm x 80mm x 36mm

0.635Kg

FCC: Part 15 subpart B;Part15C;MPE
CE: EN55032 Class B; EN61000-3-2; EN61000-3-3; EN50130; EN300 330; EN301

489-1/-3; EN60950-1; EN62311

RCM: AS/NZS CISPR32;AS/NZS4268;AS/NZ60950
IC:ICES-003;RSS310

www.grandstream.com

3.2020.01