Toshiba Strata DK14 Installation And Maintenance Manual page 123

Table 4-15 RCTUC/D Maximum Capacity Examples with ISDN BRI (S/T and/or U-type) Circuits
BRI Station BRI Station
1
Circuits B channels
2
40
30
20
16
12
8
8
8
4
Table 4-16 RCTUE/F Maximum Capacity Examples with ISDN BRI (S/T and/or U-type) Circuits
BRI Station BRI Station
1
Circuits B channels
2
64
50
40
30
20
16
8
8
8
4
4
2
1. Each BRI circuit (S/T and/or U-type) provides two B channels plus one D channel and reduces the system
capacity by two station ports and two CO lines. Each (S/T) BRI station circuit allows up to eight TE-1 and TA
devices to share the BRI B channels (two simultaneous calls maximum per BRI circuit). Each BRI-U circuit
supports one TE-1 or TA device.
2. Maximum BRI capacity.
3. Conventional stations include Toshiba digital and electronic telephones, or attendant consoles, standard
telephones and devices.
4. BRI S/T circuits are available with RBSU/RBSS PCBs and BRI-U circuits are available with RBUU/RBUS
PCBs. ISDN BRI PCBs will be available with a future release of DK424 software. Each BRI line circuit (S/T or
U) provides two BRI CO lines (channels) for incoming/outgoing calls.
5. Conventional lines include analog and digital (T1 or PRI) loop start, ground start, DID, and Tie lines.
Strata DK I&M 5/99
Other Station
1 3
Circuits
2
80 144
60 164
40 184
32 192
24 200
16 208
16 216
16 216
8 228
Other Station
1 3
Circuits
2 2
128 19
100 216
80 240
60 256
40 280
32 288
16 304
16 312
16 312
8 320
8 320
4 328
BRI Line BRI Line
4 4
Circuits B channels
2
82 16
8 16
8 16
8 16
8 16
8 16
4 8
2 4
2 4
BRI Line BRI Line
4 4
Circuits B channels
2 2
8 16
8 16
8 16
8 16
8 16
8 16
8 16
4 8
2 4
4 8
2 4
2 4
DK424 Configuration
System Capacity
Other Line
5
Circuits
48
68
88
96
104
112
120
124
132
5
Other Line Circuits
56
84
104
124
144
152
168
176
180
184
188
192
4-11