Nortel Optical Multiservice Edge 6130, Руководство по планированию, Страница: 123 / 292

Technical specifications 7-21
Planning Guide NT6Q92MA Rel 1.0 Iss 1 Standard September 2006
For applications with the 28xE1/DS1 circuit pack, right routing E1 or DS1
cables must be used. The cable connectors for the right routing cables must
comply to the specifications provided in
Table 7-21 . Refer to Figure 7-5 on
page 7-23 for more details.
Table 7-20
Cable specifications for connecting DS1 ports
Feature Physical specification
Conductor 24 AWG solid tin plated copper
Insulation Solid polyolefin or solid Polyethylene
Pairs Two conductors twisted into pairs with varying lay length
Pair groups 32 twisted pairs are cabled together
Jacket 32 pair groups are jacketed with PVC
Colour Code Refer to Table 7-15 on page 7-12 for colour coding information
Shield 24 AWG tinned copper drain wire over the foil with a 34 AWG tin plated
copper braid, 65% coverage.
Jacket Gray PVC jacket. Overall dimension 14.0 mm Nom.
Electrical Characteristics
Impedance 100 +/- 15 Ohms Nom.
Capacitance 13.3 pF/ft Nominal
Velocity of propagation 65% Nominal
Near End Cross Talk
(NEXT) pair to pair 53 dB at 20 MHz
Dielectric Strength
Conductor to Conductor 2.5 KV DC
Core to Sheath 2.3 KV DC
Table 7-21
Connector specifications for right routing E1/DS1 cables
Feature Physical specification
Connector
Connector type 64 POS Male AMP Champ (0.085) or equivalent ‘key telephone’
connector
Latching hardware 4-40 screws - 2 places
Component Minimum 30uin Au over 50uin Ni plating on contacts