4 Section 61104020L4-5, Issue 3 61104020L4-5CSee Figure 4 for additional channel slot deploymentrestrictions for each bank type.D4 Bank RequirementsThe COT D4 bank must be configured with an OIU-2selected for external timing. The COT bank must beprovided with an external composite clocksynchronized with the network.SLC-96 Bank RequirementsThe COT SLC-96 bank must be configured with aspecial service unit (SSU) selected for external timing.The COT SLC-96 bank must be provided with anexternal composite clock synchronized with thenetwork.Interface RequirementsThe U-BR1TE V unit includes two interfaces. Theloop-side interface is an ISDN U-interface which isused to deliver Basic Rate service. The carrier-sideinterface is a D4/SLC-96 channel bank interfacewhich is used to insert data into the 1.544 Mbps T1stream. Only the polarity-insensitive T and R leadsare used in the cross-connection.Option Switch SettingsFigure 5 displays the locations for SW1, SW3, andSW6 on the U-BR1TE V. Table 1 contains the optionsettings for SW1, SW3, and SW6 of the U-BR1TE V.Figure 5. SW1, SW3, and SW6 Labeling1 TRMB1B2DZBS DIS1ON22 3 4 5 6ONZBS ENLUNT(COT)1 TRMB1B2DZBS DIS2 3 4 5 6ONZBS EN1ON 2LUNT(COT)SW1SW3TANDEMLULT(RT) ADJTANDEMSW3LULT(RT) ADJSW2NORMSW4POWERNORM POWERSW6Figure 4. Time Slots that CANNOT ContainBR1TE Cards1 2 3 4 5 6 7 8 9 10 11 121 2 3 4 5 6 7 8 9 10 11 1213 14 15 16 17 18 19 20 21 22 23 2413 14 15 16 17 18 19 20 21 22 23 24Physical SlotsTime SlotsPhysical SlotsD4 Bank:D4 ChannelCounting1 2 3 4 5 6 7 8 9 10 11 121 5 9 13 17 21 2 6 10 14 18 223 7 11 15 19 23 4 8 12 16 20 24Physical SlotsTime SlotsSLC-96CarrierMode 1Terminal:D1D ChannelCounting1 2 3 4 5 6 7 8 9 10 11 121 5 9 13 17 21 2 6 10 14 18 223 7 11 15 19 23 4 8 12 16 20 2413 14 15 16 17 18 19 20 21 22 23 24Physical SlotsTime SlotsPhysical SlotsSLC-96CarrierMode 3Terminal:D1D ChannelCounting1 2 3 4 5 6 7 8 9 10 11 122 4 6 8 10 12 14 16 18 20 22 241 3 5 7 9 11 13 15 17 19 21 2313 14 15 16 17 18 19 20 21 22 23 24Physical SlotsTime SlotsPhysical SlotsD4 Bank:D1D ChannelCounting, orSLC-96Carrier Mode3 Terminal:D4 ChannelCounting****** *************************** ****** A channel unit with B+D service cannot occupy this slotA channel unit with 2B+D service cannot occupy this slot**