4UL-A, DCLog Xpress-I Server, Order Information

P/N Product* Channel
891-2172-A28 4UL-A24,
DCLog Xpress Server (RAID-1)
24 Analog Phones or Analog Trunks,
Expandable up to 72Ch
890-0000-008 8Ch Analog Expansion License and Mainboard,
DCLog Xpress License and Board
8Ch Analog Expansion License and Board
Applicable to 4UL-A24
890-0000-009 8Ch Analog Expansion License and Daughterboard,
DCLog Xpress License and Board
8Ch Analog Expansion License and Board
Applicable to 4UL-A24
   Note:* Maxmum 2 Daugherboards can be mounted on 1 Mainboard. Ex. When you plan expand 4UL-24 from 24Ch to 40Ch,
                   you need  order Mainboard x1 with license(890-0000-008) and Daughterboard x1 with License(890-0000-009).
Passive Analog TAPs, Record Analog Phones and Analog Trunks
Designed for analog networks, 4UL-A series products are offered from 24Ch to 72Ch suitable for expanding business and offices. The tapping point can be anywhere on an analog line between Central Office and PBX, Central Office and phones, or PBX and phones. The recording impedance is up to 8kΩ AC/1MΩ DC for 4UL-A series, ruling out the interruption on transmission of monitored signals.
DCLog Xpress support standard search

The standard search support the following Search Criteria: Recording Start Date / Time, End Date / Time, and some default options.

DCLog Xpress support advance search

The advance search support the following Search Criteria: Extension,Direction,Caller ID, Called ID,Reference ID,etc.

Various CODECs Give Choices between Better Voice Quality and Longer Retention

CODEC File Per Hour Quality Browser
Playback Speed
File Size Live
MP3 Approximately
Medium Fast Small Yes
PCM Approximately
High Fast Big Yes
G.729 Approximately
High Normal
(Needs transcoding)
Small Yes
   Note:* All products support MP3 PCM and G.729 codecs, default setting gives shorter buffer time when play voice file on                                         Chrome browser. You can set codec according to requirements between more storage hours or shorter buffer time
                   of the playback.  
Product Specification
Software Configuration System Configuration
Operating System: Linux CentOS 7 64bit,
Database: Oracle 11g 64 bit Express Edition
Pre-installed: DCLog Xpress Base Package (DCLog ES V3.5 Xpress)
Browser: HTML5 Browser (Google Chrome Recommended and                                             Pre-installed)
GUI Language: Simplified Chinese, Traditional Chinese, English,                                                      Japanese, Korean
IPC (Industrial PC): 4U Rack Mount Server with Intel CPU and                                                             8G Memory
Storage: 1TB RAID-1                                                                                                                   (750GB for Voice File up to 105,000 Hours Storage @Default                            Setting MP3 Codec, and 210,000 Hours Storage @G.729 Codec)
I/O Ports: Keyboard, Mouse, Network, Display and USB
Mouse & Keyboard: Mouse and Volume Control Keyboard Included
Speaker: Playback Speaker Embedded in Chassis
Telephony Interface Telephony Audio Signal
Connectors: RJ21 (50pin male) Connector
Optional: PatchPANEL-1U-RJ11 with 25 RJ11 Jack (PN: 900-0000-001)

Input Impedance:    ≥1MΩ/500V DC;    ≥8kΩ/1000V AC
Insulation Resistance for PC Isolation from Telephone Line:
≥2MΩ/500V DC
Frequency Response: 300-3400Hz(±3dB)
Signal-to-Noise Ratio: ≥38dB
Echo Suppression: ≥40dB
Environment Dimensions
Working Temperature: 0℃ — 55℃
Humidity: 8% — 90% Non-condensing
Chassis Dimensions: 480mm x 177mm x 440mm (W x H x D)
Package Dimensions: 590mm x 370mm x 590mm (W x H x D)
Power Input Weight
AC Input: 100V or 230V
Total Output: 350W
Gross Weight: About 19kg

Related Accessories
P/N: 900-0000-001 P/N: 900-0000-002 P/N: 900-0000-0E2 P/N: 900-0000-003
with 25 RJ11 Jack
RJ21 Cable RJ21 Cable Expansion SmartRAIL