Instruction manual

Strata DK424i
Functional Block Diagrams
Strata DK General Description 6/00 37
Figure 14 Station Side Functional Block Diagram
S
4
R
4
S
4
U
4
U
4
RATU
4 Attendant Console Circuits
RBSU
3
2B+1D/Circuit
(2-NT Circuits)
RBUU
3
2B+1D/Circuit
(2-LT Circuits)
1
1
1
1
1
1
1
1
EOCU
(Option PCB
to Receive
Speaker OCA)
RDSU
4 Digital Telephone Circuits
2 Standa rd Telephone Circuits
PDKU2
8 Digital Telephone Circuits
RWIU
32 Digital Wireless Telephone Circuits
RSTS
(Option PCB)
2 Standard
Telephone
Circuits
R48S
(Option PCB,
RDSU/RSTU2
Only) -48 Volt
Loop Supply
R48S
(Option PCB,
RDSU/RSTU2
Only) -48 Volt
Loop Supply
PESU
4 Electronic Telephone Circuits
2 Standard Telephone Circuits
EOCU
(Option PCB
to Receive
Speaker OCA)
RBSS
2B+1D/Circuit
(2-NT Circuits)
RBUS
2B+1D/Circuit
(2-LT Circuits)
Data and Speech Highway
Digital Telephone (DKT)
and Add-on Module
Digital Telephone
with RPCI-DI
DDCB
Digital Cordless
Telephone
MDFB
Door Phones and
Lock Controls
TAPI PC
Modem
(Pool)
DIU-DS
Mainframe Computer
DIU-DS
DIU-DS
RS-232 Cables
Printer (Sharing)
Digital Telephone
with DSS Console
1 Pair Modular Cord
RS-232 Cable
PC
1-pair Modular Cords
DPFT
Voice
Mail
Base Station 1
Strata AirLink Wireless
Base Stations (4)
Handsets
Handsets
Base Station 2
Modem
RS-232 Cables
HESB
Loud
Ringing Bell
Strata AirLink Base Station
Interface Adapter (BSIA)
Electronic
Telephone (EKT)
Door Phones and
Lock Controls
Standard
Telephone
Alternate BGM
source to stations
and Page Output
Modular Jacks
Main Distribution Frame (MDF)
25-pair Amphenol Connectors and
Cables (except RBSU/RBSS)
PC Attendant
Console
EKT with HDSS Console
(PEKU Only)
Power Failure
Transfer Unit
Power Failure
Standard Telephone (8 max.)
Off-premises Station
Digital Annuncer
for ACD and Auto Attendant
Secondary
Protector
1. Customer-supplied equipment
2. RSTU2 is required for standard telephone message waiting lamp.
3. RBUU/RBUS (Release 4.3).
4. U, S, T, R are ISDN reference model termination points.
FAX
HDCB MDFB
4250
2
RSTU2
8 Standard
Telephone Circuits
PEKU
8 Electronic
Telephone Circuits
PC
ISDN
Telephone
(TE-1, S-Type)
COM Port
ISDN
Telephone
(TE-1, U-Type)
PC with
Video Card
(TE-1, U-Type)
Digital Single Line
Telephone (DKT)
TA
123
456
789
0#
abc
ghi jkl mno
pqrs tuv
oper
wxyz
def
HOLD
MSG CNF/TRNMUTE
talk
chan
vol