Strata CT Configuration
1-4
Strata CT I&M Manual October 2000
Expansion Cabinets
Expansion cabinets can be added to increase station and Exchange line capacity of systems
that allow multiple cabinets.
shows an example of the interior of an expansion
cabinet.
Refer to the following section for station/line capacities.
shows the number of
stations and lines available when additional cabinets and PCBs are used.
Figure 1-3 Strata CT Expansion Cabinet Interior
Printed Circuit Boards (PCBs)
PCBs are installed in the cabinets to provide interface for stations, lines, and peripherals.
Each PCB measures 7.5 x 5.5 inches (190 x 140 mm) and mounts in the slot with a 44-pin
backplane connector. PCB external connections to station equipment are made to the Main
Distribution Frame (MDF) using industry-standard connectors.
Maximum Station/Line Capacities
Attaining maximum system capacities depends on power consumption of a particular
configuration. Configurations for a fully expanded system can range from 200 lines or 336
stations. One universal slot is required for Remote Maintenance PCB with B3CAU/B3CBU
and B5CAU/B5CBU, but is optional for B1CU and B2CAU/B2CBU.
A summary of the maximum number of lines and stations by processor is shown in
Table 1-4
Strata CT Maximum Capacities
Cabinets
B1CU
B2CAU/
B2CBU
B3CAU/
B3CBU
B5CAU/
B5CBU
Maximum Exchange Lines
32
120
120
200
Maximum Stations
56
144
192
336
System Ports (total)
64
172
266
432
* Configuration numbers marked with a * do not include a slot for the Remote Maintnenace PCB. All other con-
figurations (without an *) assume that a slot is provided for the Remote Maintenance PCB.
S_01
S_02
S_03
S_04
S_05
S_06
S_07
S_08
S_09
S_10
5003 CT I&M 00
CABINET NO.
2
S_01
S_02
S_03
S_04
S_05
S_06
S_07
S_08
S_09
S_10
3
4
5
6
7
POW
+5V
-5V
P.F.
RESET
EXP
BASE
AC IN
AC IN
DC OUT
-27V1
-27V2
-27V3
-27V4
+
-
POWER
ON
OFF
FG
5002
POW
+5V
-5V
P.F.
RESET
EXP
BASE
AC IN
BATT
DC OUT
-27V1
-27V2
-27V3
-27V4
+
-
POWER
ON
OFF
FG
5002
H
C
Summary of Contents for Strata CT
Page 36: ...Strata CT Configuration 1 22 Strata CT I M Manual October 2000 H C ...
Page 94: ...Strata CT Installation 2 58 Strata CT I M Manual October 2000 H C ...
Page 242: ...Peripheral Installation 6 54 Strata CT I M Manual October 2000 H C ...
Page 258: ...ACD Installation 7 16 Strata CT I M Manual October 2000 H C ...
Page 274: ...Fault Finding 8 16 Strata CT I M Manual October 2000 H C ...
Page 364: ...ISDN Interfaces 10 38 Strata CT I M Manual October 2000 H C ...
Page 370: ...Notes to Users A 6 Strata CT I M Manual October 2000 H C ...