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Zhone Technologies, Inc. IMACS Product Book, Version 4
March 2001 Page 60
Table 18 describes the BRI card specifications.
Table 18—BRI Card Specifications
Models 826070, 826171, 826270, 826361 and 826461 Basic
Rate ISDN Cards
Physical Characteristics
Number of ports 8
Capacity per port Two B (64 kbps each) and one D (16 kbps)
channel
Physical Interface
Female 50-pin RJ-27X Telco connector
Electrical Interface
Model 826070, 826171, 826361 and 826461 2-wire, U-interface per ANSI T1.601
Model 826270 4-wire, S/T interface per ANSI T1.602/ITU
1.430
826070 and 826171 Transmission
Range
Wire Gauge 22 AWG (.644 mm)
23 UK SWG
24 AWG (.511 mm)
25 UK SWG
26 AWG (.405 mm)
27 US SW
Distance 26,000 ft (7.9 km) 22,000 ft, (6.7 km) 18,000 ft (5.5 km)
826270 Transmission Range Distance
NT p-p Max 1500m
NT s-b Max. 1500m
NT e-b Max. 1500m. 35 m between devices
Code Alternate Mark Inversion (AMI)
Rate 192 Kbps +/- 100ppm
Timing External and internal (software configurable)
Remote NTU Configuration Options
(for 256x Zhone Technologies and
Adtran NTUs
Remote NTU not applicable for the 8263 and 8264.
DTE Interface Type V.36 or V.24
Procedural Characteristics
Data Protocol Transparent up to 64kbps or 128 kbps
Channel collision arbitration (Model 8262 only) As per I.430 (D channel bit echo)
Sealing Current
(Model 8261 only)
Amperage Jumper set-able 7.5mA or 15mA (requires -48VDC power
Control Soft set-able options for start time, duration, repeat time
Multidrop Capability (Model 8262 only) Max 2
Phantom Power
(Model 8262 manual settings)
Wattage Limited to 90 mA per port.
Software Configurable Options
Models 826070 and 826171 U termination Network (nt) or User (lt)
Model 826270 S/T termination TE, NT point-to-Point, NT short-bus, NT extended
bus
Termination Mode for 826070 and
826171
Lease, Proprietary, Interworking, NTU-1
Termination Mode for 826270 Lease, Proprietary Interworking