
Appendix A. Connectors, Cables, and Accessories
89
Cable List
The maximum attenuation of the associated cables shall not exceed 6 dB when
measured at 1024 KHz for the 2Mb adapter. The frequency/attenuation
characteristics shall follow the root F law.
IBM E1 coaxial cables meet these characteristics.
Customer Cables
Be very careful when selecting cables:
•
Only 75 ohm coaxial cables must be used (93 ohm or 50 ohm coaxial cables are
not acceptable).
•
Shielding must have an aluminium foil shield, and a braid shield (minimum 90 %
coverage).
•
BNC connectors must be connected to cable with a 360 degree shield continuity.
Table 59. E1 Coaxial Cables (BNC 75 ohm)
Length
m (ft)
Feature Code
Part Number
15 (50)
5250
80G0714
30 (100)
5251
80G0715
70 (230)
5252
80G0716
100 (328)
5253
80G0717
122 (400)
5254
80G0718
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