Sony SNT-V704 is a compact, high-performance Video Network Station that allows users to remotely monitor and control analog cameras over a TCP/IP network. The unit accepts up to four analog video inputs providing outstanding
flexibility for your IP-based monitoring systems.
  Supporting both MPEG-4 video and JPEG compressed images at a high-refresh rate of 30 fps (NTSC)/25 fps (PAL), the SNT-V704 offers you the option to choose high video throughput over your network with MPEG-4 or high-quality still images with JPEG. USB support for additional storage, a bi-directional audio function, plus a number of other convenient features such as alarm, image transfer, and network security functions, enables scalable and effective monitoring operations.
  If converting existing analog cameras to an IP-based monitoring system is your need, the SNT-V704 is your answer.

Sony SNT-V704 Main Features:

• 4 looping BNC inputs
• MPEG/JPEG Compression
• Sensor and Alarm ports
• USB Port
• Extended Temperature Range
  

Product Features:

Analog Video interface:

Video input Analog composite (BNC x 4),1.0 Vp-p, 75 Ω,
unbalanced, sync negative, Auto sensor for NTSC or PAL
Video ouput Analog composite (BNC x 4),1.0 Vp-p, 75 Ω,
unbalanced,sync negative (loop-through)

Audio:

Audio compression G.711 (64Kb/s)
Mic in Mini-jack (Monaural) Supports Plug-in power system (5.0 V DC)
Line out Mini-jack (Monaural x 2ch) Maximum output level 1.1 Vrms
Line in Mini-jack (Monaural x 2ch) Maximum output level 1.1 Vrms

System/Network:

CPU 64-bit RISC processor
RAM 128 MB (including 32 MB alarm buffer)
Flash memory 32 MB
Image size (JPEG/MPEG-4) NTSC: 720 x 480, 640 x 480, 320 x 240
PAL: 720 x 576, 640 x 480, 320 x 240
Compression JPEG/MPEG-4
Compression ratio Variable in*
Frame rate (JPEG/MPEG-4) NTSC: Max. 30 fps x 4ch (640 x 480)
PAL: Max. 25 fps x 4ch (640 x 480)
Protocols TCP/IP, ARP, ICMP, HTTP, FTP (server/client), SMTP,
DHCP, DNS, NTP, SNMP (MIB-2)
Number of clients Max. 50

Interface:

Ethernet 100Base-TX/10Base-T (RJ-45)
Sensor input 4 (3.3 to 24 V device supported, photocoupler inputs are electrically isolated from the unit)
Alarm output 4 (24 V DC or less, 1A, mechanical relay outputs are electrically isolated from the unit)
Serial interface RS-232C/485/422 (for camera control)
USB Port USB 2.0 (for use with USB mass storage class devices only)

General:

Mass Approx. 1.2 kg (2 lb 10 oz)
Dimensions(W/H/D) 210 x 42 x 202 mm (8 3/8 x 1 11/16 x 8 inches)
Power requirements DC 12 V (AC adapter included)
Power consumption 18 W
Operating temperature -10°C to 40°C (14°F to 122°F)
Storage temperature -20°C to 60°C (-4°F to 140°F)
Operating humidity 20 to 80 %, Non-condensing
Storage humidity 20 to 95 %, Non-condensing
Supplied accessories CD-ROM (setup program and User's Guide) (1),
I/O receptacle (2), AC adaptor, AC cord, Installation manual (1)