Table 3. SCM Card Technical Specifications (2 of 2)
Specifications
Criteria*
OC3 Uplink Specifications
Number of ports
1 OC3
Connector Type
Fiber SC connectors
Standards Supported
ANSI T1.105.06-94 Jitter, ANSI T1.105.09 94 Jitter,
ANSI T1.117.06-91, ITU-T G.957 7/95
Frame Formats
OC3 or STM-1 Operation, Direct Mode only
Non-Return to Zero
Line Type
Data Rates Supported
Facility Datalink Protocol
155.52 Mbps
ANSI T1.105 Format, ANSI T1.646 HEC, ITU-T I.432
Scrambler
Cable Distance
Model 8022 (MMF)
Model 8023 (SMFIR)
Model 8024 (SMFLR)
2 Km (6561.7 feet)
15 Km (49,212.6 feet) SMF fiber
40 Km (131,234 feet) SMF fiber
E3 Uplink Specifications
Number of ports
1 E3
Connector Type
BNC
Standards Supported
Frame Formats
ETSI ETS 3000 689 Electrical and Jitter
Direct or PCLP
HDB3
Line Type
Data Rates Supported
Facility Datalink Protocol
34.368 Mbps
ETSI ETS 300 686 PLCP, ETSI ETS 3000 689 Direct,
ITU T1.646 HEC, ITU-T I.432 Scrambler
Cable Distance
75 ohm coaxial 900 feet (274.3 meters)
IMA Uplink Specifications
Number of ports
8 T1 or E1
Connector Type
RJ-48M (50-pin telco)
Standards Supported
Frame Formats
RFC 495, ANSI T1.403, ITU G.703/G.704
T1: Superframe, extended Superframe
E1: E1, E1-CRC
Line Type
T1: B8ZS
E1: HDB3
Data Rates Supported
T1: 1.544 Mbps per T1 (max. 8 T1)
E1: 2.048 Mbps per E1 (max. 8 E1)
Facility Datalink Protocol
Cable Distance
ANSI T1.403
T1/E1 (short haul): 200 meters (656 feet) (LBO=0, –7, –15,
–22 dB)
T1/E1 (long haul): 2000 meters (6561.7 feet)
* Criteria of technical specifications are subject to change without notice.
10
November 2000
8021-A2-GZ40-20
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