Nortel-networks Circuit Card Manuel d'utilisateur Page 343

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 908
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 342
NT5D97 Dual-port DTI2/PRI2 card Page 343 of 906
Circuit Card Description and Installation
Trunk interface switches for NT5D97AA/AB
Impedance level and unit mode
The S9/S15 switch selects the impedance level and loop operation mode on
DEI2 OR PRI2. Refer to Table 122.
Transmission mode
A per-trunk switch (S4/S10) provides selection of the digital trunk interface
type. Refer to Table 123.
Line build out
A per-trunk set of three switches (S5/S11, S6/S12 and S7/S13) provides the
dB value for the line build out. Refer to Table 124 on page 344.
Table 122
Impedance level and loop mode switch settings
Switch Description S9/S15 Switch Setting
1 Impedance level OFF - 120 ohm
ON - 75 ohm
2 Spare X
3 Spare X
4 Unit mode OFF - Loop operates in the DTI2 mode
ON - Loop operates in the PRI2 mode
Table 123
Impedance level and loop mode switch settings
Description S4/S10 switch settings
E1 OFF
Not used
Vue de la page 342
1 2 ... 338 339 340 341 342 343 344 345 346 347 348 ... 907 908

Commentaires sur ces manuels

Pas de commentaire