Dahua Alarm Hub 2 WiFi 4G - ARC3800H-FW2 - (Hub only) (868Mhz)

• Supports alarm video verification through integration of the IPC with the hub. 
• Images can be remotely and quickly transferred from the PIR-Cam to the device. 
• Features voice call alarm. 
• Supports wired and AP network configuration methods, which makes it easier to add the hub to apps and to switch to the hub's network. 
• Supports multi-network redundancy for Ethernet, Wi-Fi and 4G networks to ensure the network remains stable and reliable. 
• Supports two-way communication and frequency hopping to make communication with wireless peripherals stable and reliable. 
• Features cloud update. You can also remotely update the device and wireless peripherals on the mobile app. 
• Offers a dual backup system, and uses auto recovery when an update fails.

Port

• Wireless Zone : 150 channels wireless peripherals (6 sirens, 64 PIR cameras(only 8 indoor PIR cameras), 64 keyfobs, 8 keypads and 4 repeaters)
• Network Mode : Ethernet, Wi-Fi and Cellular network(Supports installation of dual SIM cards. Only one card can be enabled at a time)
• Network Port : 1 RJ-45, 10 Mbps/100 Mbps Ethernet port.
• Storage Battery : One built-in 4,750 mah rechargeable lithium battery.

Video & Audio

• Video Input : 8-ch IPC, which only supports the upload of alarm videos.
• Audio Output : 1 channel
• Volume Control : Yes
• Voice Broadcast : Telephone and local speaker

Function

• Indicator Light : The indicator indicates the status of alarms, arming and disarming, the network connection and device failure.
• Button : Includes a reset button, voltage button and AP switch button.
• SMS : Yes (up to 5 phone numbers)
• Phone Call : Yes (up to 5 phone numbers)
• Video Linkage : Yes
• Offline Cache : Stores up to 50 alarm messages.
• Arm and Disarm : App, keyboard, remote control, card, scheduled arming and disarming.
• Remote Update : Cloud update
• Low Battery Detection : Yes
• Tamper : Yes
• User Management : 33 app users (31 general users, 1 admin user and 1 installer) and 32 keypad users
• Logs : Up to 5, 000 entries
• Transmission Protocol : SIA, SoftGuard

Wireless

• Carrier Frequency : 868.0–868.6 MHz
• Transmitter Power (EIRP) : Limit 25 mW
• Communication Mechanism : Two-way
• Communication Distance : Up to 2,000 m (6,561.68 ft) in an open space.
• Encryption Mode : AES128
• Frequency Hopping : Yes

General

• Language : Up to 7 languages are supported for SMS: English, Spanish (Latin America), French, Italian, Arabic, Turkish, and Danish. It is set as English by default. The alarm voice message feature and local speaker only support English.
• Power Supply : 100–240 VAC, 50/60 Hz
• Standby Time : The battery lasts up to 12 hours when it is fully charged and is within the following conditions: It is connected to the Wi-Fi, its ID is connected to the alarm receiving center, the heartbeat interval is 1,800 seconds, and it is connected to 8 peripherals and the cloud.
• Power Consumption : 220 VAC 80 mA(Max) , 220 VAC 40 mA(Standby)
• Operating Temperature : When battery is not charging: –10 °C to +55 °C (+14 °F to +131 °F) , When battery is charging : 0 °C to +45 °C (+32°F to +113 °F)
• Operating Humidity : 10%–90% (RH)
• Product Dimensions : 174.8 mm × 174.8 mm × 38.3 mm (6.88" × 6.88" × 1.51") (L × W × H)
• Net Weight : 510 g (1.12 lb)
• Gross Weight : 860 g (1.90 lb)
• Installation : Supports wall mount and desktop mount installation.
• Casing Material : PC + ABS
• Certifications : CE , EN 50131-1:2006+A1:2009+A2:2017+A3:2020 , EN 50131-3:2009 , EN 50131-6:2017+A1:2021 , EN 50131-5-3:2017 , EN 50131-10: 2014 , EN 50136-2: 2013+A1:2023 , Security Grade 2 , Environmental Class II , ATS category: SP2/DP2
• Anti-corrosion Level : Basic Protection
• Storage Temperature : –10 °C to +55 °C (+14 °F to +131 °F)
• Storage Humidity : 10%–90% (RH)
• Packaging Dimensions : 254 mm × 211 mm × 61 mm (10.00" × 8.31" × 2.40") (L× W × H), standalone in the inner box , 524 mm × 508 mm × 442 mm (20.63" × 20.00" × 17.40") (L × W × H), protective case

Wi-Fi

• Wi-Fi Standard : IEEE 802.11b/g/n
• Wi-Fi Frequency Range : 2400-2483.5 MHz
• Wi-Fi Power Transmission : ≤20 dBm@2400-2483.5 MHz

Cellular Network

• Transmitter Power (EIRP) : 4G: Power class3: 23 dBm±2dB , 3G: Power class3: 24 dBm+1/-3dB , 2G: Power class0: 30 dBm±3dB（GSM900） , Power class5: 33 dBm±3dB（GSM1800）
• Cellular Network Standard : GSM/WCDMA/LTE
• Frequency Range : EU: 4G: FDD-LTE: B1/B3/B7/B8/B20/B28A; TDD-LTE: B38/B40/B41; 3G：WCDMA: B1/B8; 2G：GSM: 1,800/900MHz;