Features
Features
• High-powered 50W speaker with maximum volume up to 126dBA for expansive coverage
• Supports SIP paging, multicast paging, call_x0002_waiting with priority override, and more
• Full-band and wide-band audio codec support, including Opus & G.722
• 1x 10/100Mbps network port with PoE/PoE+/ PoE++ input, and 1x 10/100Mbps network port with PoE/ PoE+ output
• Includes differential LINE IN and LINE OUT connections
• 3 microphones, AI noise reduction, intelligent text-to-speech (TTS) support
• Supports Airplay, ONVIF, RTSP/HTTP streaming, local audio files, and mobile app playback
• IP66-rated waterproof and dustproof; made with durable PC + ABS material and a stainless steel mounting bracket to support harsh outdoor environments
• Ideal for outdoor campuses, public spaces, large offices, school playgrounds, hospitals, parks, warehouses, and more.
• The GSC3518HS provides a powerful outdoor announcement solution that expands security and communication.
• This high-powered SIP speaker includes 3 microphones, AI-based background noise reduction, and intelligent text-to-speech to ensure every word is heard clearly in talk-back scenarios.
• The GSC3518HS supports PoE++ input and PoE+ output, catering to device cascading scenarios.
Technical Specifications
Technical Specifications
• Protocols/Standards: SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, LLDP-MED, SIMPLE, LDAP, TR-069, 802.1x, TLS, SRTP, IPv6, OpenVPN®
• Voice Codecs and Capabilities: G.711µ/a, G.722 (wide-band), G.726-32, iLBC, Opus, G.723, G.729A/B, in-band and out-ofband DTMF
• Telephony Features: SIP Paging, Multicast Paging, Group Paging, Push-to-Talk (PTT), call-waiting with priority override
• QoS: Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS
• Security: User and administrator level passwords, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access control, secure boot
• Upgrade/Provisioning: Firmware upgrade via TFTP, HTTP, HTTPS, or local HTTP upload, mass provisioning using GDMS, TR069, or AES encrypted XML configuration file
• Network Interfaces: 1x 10/100 Mbps port with integrated PoE/PoE+/PoE++ input 1x 10/100 Mbps port with integrated PoE/PoE+ output
• Auxiliary Port: 2x 2-pin Switch-in input ports, 1x 2-pin Switch-out output port, 1x differential line in port, 1x differential line out port, 2x network ports, 1x DC24V-48V port, reset
• Speaker: 50W high-fidelity speaker Frequency: 270Hz-13.2KHz Sensitivity: Up to 109 dBA at 1m/1W(1 kHz)
• Max SPL: Up to 126dBA
• Microphone: 3 Built-in microphones with 26.25 feet (8m) pickup distance
• Power & Green Energy Efficiency: PoE++ Input, complies with IEEE 802.3bt standard, Class 8, Max power 71 Watt, Max Input voltage 57V; PoE+ Output, complies with IEEE 802.3at standard, Class 4, Max power 25 Watt, DC IN 24V/4A - 48V/2A
Box Contents
Box Contents
• GSC3518HS Horn Speaker
• Mounting kit
• Quick installation guide
Weights & Dimensions
Weights & Dimensions
12.78-in x 11.23-in x 8.04-in
6.33 lbs
Datasheets
Datasheets
Grandstream SIP/Multicast Talk-Back Horn Speaker
Grandstream SIP/Multicast Talk-Back Horn Speaker
Vendor: Grandstream
SKU: GRGSC3518HS
Manufacturer's Warranty: 1-Year
The GSC3518HS is a SIP/multicast talk-back horn speaker that provides crystal clear HD audio, a high-fidelity 50-Watt speaker, and IP66-rated water and dust protection.
- Same day shipping available for orders placed before noon. Please make note on your order.
- Free returns within 30 days for defective items
Features
Features
• High-powered 50W speaker with maximum volume up to 126dBA for expansive coverage
• Supports SIP paging, multicast paging, call_x0002_waiting with priority override, and more
• Full-band and wide-band audio codec support, including Opus & G.722
• 1x 10/100Mbps network port with PoE/PoE+/ PoE++ input, and 1x 10/100Mbps network port with PoE/ PoE+ output
• Includes differential LINE IN and LINE OUT connections
• 3 microphones, AI noise reduction, intelligent text-to-speech (TTS) support
• Supports Airplay, ONVIF, RTSP/HTTP streaming, local audio files, and mobile app playback
• IP66-rated waterproof and dustproof; made with durable PC + ABS material and a stainless steel mounting bracket to support harsh outdoor environments
• Ideal for outdoor campuses, public spaces, large offices, school playgrounds, hospitals, parks, warehouses, and more.
• The GSC3518HS provides a powerful outdoor announcement solution that expands security and communication.
• This high-powered SIP speaker includes 3 microphones, AI-based background noise reduction, and intelligent text-to-speech to ensure every word is heard clearly in talk-back scenarios.
• The GSC3518HS supports PoE++ input and PoE+ output, catering to device cascading scenarios.
Technical Specifications
Technical Specifications
• Protocols/Standards: SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, LLDP-MED, SIMPLE, LDAP, TR-069, 802.1x, TLS, SRTP, IPv6, OpenVPN®
• Voice Codecs and Capabilities: G.711µ/a, G.722 (wide-band), G.726-32, iLBC, Opus, G.723, G.729A/B, in-band and out-ofband DTMF
• Telephony Features: SIP Paging, Multicast Paging, Group Paging, Push-to-Talk (PTT), call-waiting with priority override
• QoS: Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS
• Security: User and administrator level passwords, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access control, secure boot
• Upgrade/Provisioning: Firmware upgrade via TFTP, HTTP, HTTPS, or local HTTP upload, mass provisioning using GDMS, TR069, or AES encrypted XML configuration file
• Network Interfaces: 1x 10/100 Mbps port with integrated PoE/PoE+/PoE++ input 1x 10/100 Mbps port with integrated PoE/PoE+ output
• Auxiliary Port: 2x 2-pin Switch-in input ports, 1x 2-pin Switch-out output port, 1x differential line in port, 1x differential line out port, 2x network ports, 1x DC24V-48V port, reset
• Speaker: 50W high-fidelity speaker Frequency: 270Hz-13.2KHz Sensitivity: Up to 109 dBA at 1m/1W(1 kHz)
• Max SPL: Up to 126dBA
• Microphone: 3 Built-in microphones with 26.25 feet (8m) pickup distance
• Power & Green Energy Efficiency: PoE++ Input, complies with IEEE 802.3bt standard, Class 8, Max power 71 Watt, Max Input voltage 57V; PoE+ Output, complies with IEEE 802.3at standard, Class 4, Max power 25 Watt, DC IN 24V/4A - 48V/2A
Box Contents
Box Contents
• GSC3518HS Horn Speaker
• Mounting kit
• Quick installation guide
Weights & Dimensions
Weights & Dimensions
12.78-in x 11.23-in x 8.04-in
6.33 lbs


