Universal Slot PCBs
PCB Chapter Layout
Strata DK I&M 6/00
9-17
Universal Slot PCBs
PESU – Standard/Electronic Telephone Interface Unit
System:
DK40i Expansion KSU, DK424, DK424i
Circuits per PCB:
two standard telephone or two-wire device circuits (circuits 1,2)/
four electronic telephone circuits (circuits 5~8)
Interfaces with:
standard telephone circuits
standard telephones
voice mail ports
off-premises stations
alternate BGM source
auto attendant digital announcer
electronic telephone circuits
electronic telephones
alternate BGM source (circuit 8 only)
EOCU PCB for OCA
HDCB (circuit 5 only–ports 004, 012, 020, and 028)
external conference amplifier
Older Version(s):
none
The PESU provides a ring generator that can be set for either 130V P-P or 190V P-P for the two
standard interface circuits. PESU circuits 3 and 4 are nonfunctional, but they are each assigned a
port in system programming.
Note
For the system to recognize the DTMF tones generated by a standard telephone (or any
other device connected to a standard telephone port), a DTMF receiver unit (RRCS4, 8, or
12) must be installed on the DK40i K4RCU3, DK424 or DK424i processor PCB.
PESU controls and interface connectors are shown in
.
DK40i General Information
The PESU must be installed in the DK40i Expansion KSU in place of RDSU, RSTU or PDKU.
See
Chapter 2 – DK40i Configuration
CAUTION!
To prevent system malfunction, DO NOT install the PESU in slot 18 of the
DK40i system.
Installing the Speaker Off-hook Call Announce Unit (EOCU) (Internal Option)
1. Mate the EOCU connectors J10, J20, J40, J50, and J60 (
) with the PESU connectors
P10, P20, P40, P50, and P60.
Note
PESU connectors P10, P20, P40, P50, and P60 are positioned to allow installation of the
EOCU only in the proper position.
2. Apply firm, even pressure to the EOCU to ensure proper mating of connectors.
3. Use three-pair cable for connecting the PESU and the Speaker OCA electronic telephone.
for wiring/ interconnecting details.
4. See
“PDIU-DI Installation into 1000-series Digital Telephone” on Page 11-14
for procedures
to add required speaker OCA upgrade to electronic telephones.
Summary of Contents for Strata AirLink DK40i
Page 22: ...Introduction Related Documents Media xx Strata DK I M 6 00 ...
Page 48: ...DK14 Installation DK14 Wiring Diagrams 1 26 Strata DK I M 6 00 ...
Page 220: ...DK424 Installation Remote Cabinet Installation Instructions 5 68 Strata DK I M 6 00 ...
Page 262: ...DK424i Configuration Primary Reserve Power Cabinet Hardware 6 42 Strata DK I M 6 00 ...
Page 450: ...Universal Slot PCB Wiring Option Interface PCB Wiring Diagrams 10 42 Strata DK I M 6 00 ...
Page 592: ...Peripheral Installation Enhanced 911 Service E911 12 84 Strata DK I M 6 00 ...
Page 616: ...ACD Installation Spectrum Electronic Wall Boards 13 24 Strata DK I M 6 00 ...
Page 634: ...Fault Finding Fault Isolation Flowcharts 14 18 Strata DK I M 6 00 ...
Page 704: ...ISDN Interfaces ISDN Disconnect Cause Code 16 54 Strata DK I M 6 00 ...