Instruction manual

Strata DK40i
Peripherals
14 Strata DK General Description 6/00
Table 7 Typical Maximum Capacity Examples with ISDN BRI (S/T and/or U-type) Circuits
Peripherals
The DK40i Base KSU can support a number of peripherals, which are not considered as stations or
lines and do not affect the maximum station and line capacities. The DK40i Base KSU comes
standard with built-in interfaces for connecting the following dealer-supplied equipment: an
amplifier and speaker for paging and night ringing, Music-on-Hold (MOH) source, reserve power
batteries, and emergency standard telephone for system power failure occurrences when using
loop start lines in the base cabinet.
A relay contact is also provided to control one of the following peripherals: MOH source, night
bell, or page amplifier mute control.
An optional KSTU2 PCB provides an alternate background music source interface. The music
plays through Toshiba telephone speakers, as opposed to the external page speakers.
The optional TSIU PCB provides two RS-232 interface ports to connect two of four options: a
DKi Admin PC (or external modem for remote maintenance); or VM SMDI, ACD/MIS or an
SMDR port to connect a call accounting device or printer. An Expansion Unit RS-232 interface
PCB is required if all four features are needed.
BRI Station
Circuits
1
1. Each BRI circuit (S/T and/or U-type) provides two B channels plus one D channel. Each (S/T)
BRI station circuit allows up to two 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.
Other Station
Circuits
3
3. Other stations include Toshiba digital and electronic telephones, or attendant consoles, standard
telephones and devices.
BRI Line
Circuits
4
4. BRI S/T circuits are available with TBSU and RBSU/RBSS PCBs and BRI-U circuits are
available with TBUU and RBUU/RBUS PCBs. Each BRI line circuit (S/T or U) provides two
BRI CO lines (B channels) for incoming/outgoing calls.
BRI Line
B channels
Other Line
Circuits
5
5. Other lines include analog and digital (T1 or PRI) loop start, ground start, DID, and Tie lines.
10
2
2. Maximum BRI line capacity. BRI station circuits do not use up CO line channels and vice versa.
Also, station circuits use 2B + 1D channel; lines use one B channel which enables one BRI
circuit to provide two lines.
8612 0
81248 4
61648 4
420612 0
42048 4
22424 8
02800 12