Panasonic Strata Se General Description Manual page 11

STRATA Se/We
GENERAL DESCRIPTION
NOVEMBER 1987
OPT11
l
lA2 Key System Interface (HCNB)
0 Amplified Conference
l
Auxiliary Device Interface (HIOB)
l
Background Music with Station Control
l
Door Phone/Monitor Station
l
Alarm Button
l
Door Lock Button
l
Electronic Telephones
* Facepiates (blue, black or wine)
0 Single-line
l
1 O-button Handsfree Answerback
Speakerphone
l
lo-button Busy Lamp Field
l
20-button Handsfree Answerback
Speakerphone
l
20-button Liquid Crystal Display
TABLE C
ONAL FEATURES
l
External Amplified Speaker (HESB)
l
Loud Ringing Bell
l
Amplified Speaker
or
or
l
Talkback Amplified Speaker
l
External Page Amplifier
l
Integrated Modem (HMDB)
l
Music-On-Hold Source
l
Off-Hook Call Announce
0 Off-Premises Extension
l
Ring Generator/Power Supply (MRGU)
0 Off-Premises Line
l
Remote Administration/Maintenance
l
Station Message Detail Recording (SMDR)
0 System Battery Backup
05 SYSTEM OPERATION
General
A system (Figure 15) consists of a key ser-
vice unit (Vie HKSU is shown), power supply, up
to 16 stations*, HOLB, HSMB and HOXB op-
tional modules, and a maximum of six door
phones, The door phone control unit(s) (HDCB)
occupy one or two station location(s). All connec-
rinrs ber\/lleen the key service unit and the tele-
phones are made via a customer-provided main
distribution frame. Using modular line cord(s),
the CO lines are then connected between the
-left side panel and the locally provided RJ-25C
(up to two each) or RJ-11C (up to six each)
jacks. An external tuner (or equivalent) is re-
quired if the Music-On-Hold/Background Music
feature is utilized.
*Some optional features reduce maximum
station capacities (see Optional Features).
A functional block diagram of both key ser-
vice units is shown in Figure 16. It consists of
CO and station interfaces on the main PCB, in-
cluding a solid-state, space-division matrix and
the central control equipment (SCCU/VCCU). Op-
tional interfacing equipment includes additional
station connections (SSTU), off-hook call an-
nounce (SVCU), remote maintenance (SDTU), off-
premises line (HOLB), station message detail
record (HSMB/STMU*), lA2 interface (HCNB),
auxiliary device interface (HIOB), door phone con-
troller (HDCB) and door phone/monitor station,
external page amplifier (SEPU), internal music-
on-hold source (SMOU), and power failure
(SPFU") PCBs are a!so shov.n.
"STRA TA Se only
The system is entirely under the control of
a single-chip microprocessor, located (along
with the system program and data memories) on
the VCCU/SCCU PCB (STRATA Vie/Se, respec-
tively), which mounts on the VMAU/SMAU, re-
spectively.
Connections between the station voice lines
and the CO lines are via the switching matrix
provided on the VMAULSMAU PCB (STRATA
We/Se, respectively). The VMAUSMAU also
provides a similar matrix for intercom connec-
tion, background music, paging connections and
the distribution of various system tones (dial,
busy, etc.).
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