U181DTU02 eSpace U1900 Series Unified Gateways 4E1/T1 Digital Trunk Board

eSpace U1980 Specifications

Maximum number of users

10,000

Terminal type

Analog phones, IP phones, video phones and soft clients

Port

30 E1 ports or 20 T1 ports

Trunk protocol

SS7, R2, PRI, QSIG, QSIG, SIP

Codec

G.711A/μ, G.729a/b, and iLBC

Number of meeting participants

A maximum of 960 meeting participants which can be allocated to 320 meeting halls (each hall can support up to 120 participants by maximum)

Power supply

AC: 100 V to 240 V, 50 Hz/60 Hz
DC: –38 V to –75 V (Typical value: –48 V and –60V)
Redundancy: two modules work in load balance mode, the third one acts as a backup

Maximum power consumption

400 W (full configuration)

Dimensions (H * W * D)

Standard 19-inch 6U subrack
264 mm * 436 mm * 420 mm

Weight

31 kg to 32 kg

Environment

Temperature

Storage temperature: –40° C to +70° C
Long-term operating temperature: 0° C to 45° C
Short-term operating temperature: –5° C to +55° C

Relative humidity

5% to 95% (without condensation)

Dustproof

Less than 180 mg/m³ dust in the air (Dustproof measures should be taken in the work environment)

System reliability

>=99.999%

Maintainability

Remote maintenance, automatic configuration, log collection, and Daylight Saving Time (DST)

Manageability

Centralized/remote equipment management, signaling tracing, resource management, and alarm management