Strata CTX Configuration
Worksheet 6: Strata CTX670 Cabinet Slot Configuration
1-40 Strata CTX I&M 10/02
Step 8: Analog and VoIP Tie Line PCBs
•See Worksheet 3: CO Line to determine Analog and BVPU line PCB requirements.
• RDDU, RCOU, RCOU with RCOS, RGLU, REMU, and BVPU: Each PCB or PCB
combination requires one slot. These PCBs can be installed in any slot, except a slot that is left
vacant to provide capacity for RDTU or RPTU as shown in Tables 1-54 and 1-55. Each PCB
provides up to four circuits for the type of lines it supports, except RCOU with RCOS which
provides eight circuits.
Step 9: ISDN BRI Digital Line PCBs
•See Worksheet 3: CO Line to determine ISDN BRI line PCB requirements.
• RBUU, RBUU with RBUS, RBSU, RBSU with RBSS: Each PCB or PCB combination
requires one slot. These PCBs can be installed in any slot, except a slot that is left vacant to
provide capacity for RDTU or RPTU as shown in Tables 1-54 and 1-55. Each single PCB
provides 2 BRI circuits (four lines) and combination PCBs provide four BRI circuits (8 lines),
for the type of BRI Line it supports. Each ISDN BRI circuit provides two lines for the Strata
CTX system.
Step 10: Power Factor
• After the Cabinets are configured calculate the power factor of each cabinet using Worksheet 7
– System Power Factor Check.
Step 11: Check Systems Capacities
• Check systems capacities in Tables 1-3~1-7 to confirm the features to be used are within
limitations.
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