General DataComm SpectraComm 800 T3, Руководство по установке и эксплуатации

Страница: 14 / 62

Introduction and Specifications Technical Specifications
1-6 SpectraComm 800 T3 Data Service Unit 076R160-000
Installation and Operation Manual Issue 4
Technical Specifications
The following table describes the physical, operational, and environmental specifications for the
SpectraComm 800 T3 DSU. Conforming to these specifications ensures maximum system
performance and reduces the chances of mechanical breakdown and personnel hazard.
Table 1-3 SpectraComm 800 T3 Card Specifications
Type Specification Description
DS3 Network
Interface Data Rates T3 Network interface is 44.736 Mbps.
T3 Payload through the HSSI port is 3 to 44.2 Mbps in 3 Mbps
increments.
Communication Line T3 Digital Carrier
Line Impedance 75 Ohms, unbalanced
Network Port Interface Two DS3 BNC coaxial connectors, Transmit and Receive
Line Code B3ZS
Line Buildout Short (0 to 100 ft.) or Long (100 to 450 ft.) of coaxial cable.
Electrical Compatibility ANSI T1.404-1994
DS3 Framing Formats ANSI T1.107-1995, M23 multiplex or C-bit parity
Transmit Timing Sources Internal timing source: Stratum 4E (Local Oscillator)
External Timing: Recovered from the network
In-Service Performance ANSI T1.231-1997 Digital Hierarchy
Customer
Interface Physical Port HSSI EIA/TIA 612 50-pin SCSI-2 connector
Compatibility TIA/EIA 612, TIA/EIA 613
Data Rates 3 to 44.2 Mbps in 3 Mbps increments
Timing Source Recovered from Network Timing
Diagnostics DS3 Monitoring: Cumulative errored seconds, P-bit errors, C-bit errors, FEBE errors.
Loopback Tests:
Line loopback, Payload Loopback, Local Loopback, Local Loopback with Self-Test, DTE
Loopback, Remote Lineloop, Remote Lineloop with Self-Test, Remote Payload Loopback
Remote Payload Loopback with Self-Test, End-to-End Self-Test
Electrical Power Dissipation 6.4 W maximum per slot, Load Number 1.1
Fusing Two 2.5 A, 125V (GDC P/N 215-201-009)
One 5 A, 125V (GDC P/N 215-201-021)
Physical
Dimensions Width: 178 mm (7.0 in.)
Height: 21 mm (0.81 in.)
Depth: 241 mm (9.5 in.) Weight: 0.28 kg (10 oz.)
Shipping weight: 0.74 kg (1 lb 10 oz)
Environment Non-operating Temp. -40 to 85 degrees C (-40 to 158 degrees F)
Operating Temp. 0 to 50 degrees C (32 to 122 degrees F)
(Derate by 1 degree C/1000 ft above sea level)
Operating Humidity 5% - 95% Relative humidity, non-condensing
Non-operating Altitude 0 m to 12,191 m (0 ft. to 40,000 ft.)
Operating Altitude 0 m to 3,047 m (0 ft. to 10,000 ft.)