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Strata CTX Configuration
Worksheet 6: Strata CTX670 Cabinet Slots
2-40 Strata CTX I&M 06/04
Step 5: ISDN PRI Digital Line PCBs
See Worksheet 3: CO Line to determine RDTU PCB requirements.
The BPTU or RPTU must be placed in designated slots as shown in Table 2-55. The BPTU or
RPTU PCB can provide up to 16 or 23 ISDN PRI lines. The BPTU or RPTU slot provides 16 PRI
lines, an additional seven lines requires that the cabinet slot adjacent to BPTU or RPTU be vacant.
Up to 11 RDTU PCBs can be installed in a fully expanded system.
Important! BPTU1 or RPTU2 is required for QSIG Networking.
Step 6: Digital and Standard Telephone Station PCBs and the Stratagy DK Voice Mail
PCB
•See Worksheet 2: Standard Telephone, Stratagy DK, IVP8 to determine station PCB
requirements.
• BDKU (+ optional BDKS), PDKU, ASTU, BSTU, RSTU, RDSU/RSTS and the Stratagy DK:
Each PCB or PCB combination requires one slot. Refer to the Notes under the cabinet diagram
in Worksheet 6: Strata CTX670 Cabinet Slots to determine into which slots these PCBs can be
installed. BDKU/BDKS, PDKU, ASTU, BSTU, RSTU and RDSU/RSTS PCBs cannot be
installed in slots left vacant for RDTU or BPTU or RPTU. Each PCB provides up to eight
circuits for the type of stations or Voice Mail ports it supports, except BDKU with BDKS
which provides 16 circuits for digital telephones.
Table 2-55 BPTU or RPTU PCB Cabinet Slot Configuration
PRI Lines
Needed per
Cabinet
Slots
Needed
BPTU or RPTU
PCBs Needed
1
1. BPTU or RPTU PCBs do not have to be installed in the order shown in this table. Example: If
only one BPTU or RPTU is needed, it can be installed in any BPTU or RPTU slot shown in the
table so long as the slot is supported by the installed processor.
BPTU or RPTU cabinet slot
placement
1
Base Cabinet
1~16 1
1
S103 – BPTU or RPTU
17~23 2 S104-vacant
2
2. The slot occupied by RPTU supports 1-16 channels; the slot adjacent to RPTU must be vacant
if channels 17 through 23 are needed.
24~39 3
2
S105 – BPTU or RPTU
40~46 4 S106-vacant
2
47~62 5
3
S107 – BPTU or RPTU
63~69 6 S108-vacant
2
Second through seventh
cabinets
11~16 1 S_01 – BPTU or RPTU
17~23 2 S_02-vacant
2
24~39 3
2
S_03 – BPTU or RPTU
40~46 4 S_04-vacant
2
47~62 5
3
S_05 – BPTU or RPTU
63~69 6 S_06-vacant
2