Telephone Systems General Description

Capacities
System Capacities
12 Strata CTX General Description 11/02
Door phones 6 9 24
DSS consoles (DDSS) 3 5 16
ISDN BRI station circuits TE-1 and TA
(2B+D per circuit)
12 28 96
Off-premise stations 72 160 560
BPCI used for TAPI only: per cabinet
1
35 66 66
Total Stations (Digital/Analog/ISDN BRI B
channel combined)
72 160 560
Standard stations 64 160 560
Calls existing at the same time 56 96 366
1. Limit is based on cabinet Power Factor (PF).
Table 5 Line Capacities and Universal PCB Slots
Lines
CTX100
Base & Expansion
CTX670
Basic
Processor
BBCU + BECU
CTX670
Expanded
Processor
BBCU + BECU +
BEXS + BBMS
CO lines – loop start
(analog - 8 lines/slot)
64 96 264
CO lines – ground start
(analog - 4 lines/slot)
32 72 264
DID lines (analog - 4 lines/slot) 32 72 264
Tie lines (analog - 4 lines/slot) 32 72 264
VoIP lines (4 lines/slot)
1
1. Capacity is limited by FCC, Part 15, ElectroMagnetic Compatibility (EMC) restrictions.
82020
T1 lines (DS-1)
2
2. T1 lines can be loop start, ground start, Tie or DID (maximum 24 lines per unit, any type or combination).
64 96 264
ISDN BRI B channel lines
3
3. BRI lines provide CO line services, including Caller ID, DID and Direct Inward Lines (DIL).
64 96 256
ISDN PRI B channel lines
4
4. PRI lines provide CO line services, including QSIG Networking, Calling Party Number/Name, DID, Tie, POTS, FX and DIT.
48 96 264
Total lines (Analog, T1, ISDN BRI and
PRI B channels combined)
64 96 264
Channel Groups 32 48 128
Number of groups with Group CO Line
buttons
32 50 128
Table 4 Station/Peripherals System Capacities (continued)
Stations
CTX100
Base & Expansion
CTX670
Basic Processor
BBCU + BECU
CTX670
Expanded Processor
BBCU + BECU +
BEXS + BBMS