GHX-308A/616
HYBRID KEY TELEPHONE SYSTEM
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17
In case of Key Telephone connection, the short pins of connector “CN101~103” on the MBU should be moved “SLT”
to “K/P” position and the Key Telephones connect to <DT,DR,VT,VR> terminals of connectors “K101~103” on the
MBU.
CN101 : Extension #101
CN102 : Extension #102
Universal port (KTU or SLT selection)
CN103 : Extension #103
K/P
K/P
*.
■
: State of
Short Pin
SLT
SLT
? Key Telephone?
? Single Line Telephone?
[Figure 3-5] KEY/SINGLE LINE TELEPHONE SELECTION
VT VR DT DR
VT VR DT DR T R
T R
K100
K101
S101
S104
Key
Key or SLT
SLT
Telephone
Telephone
? Only Key Telephone
? Key telephone / Single
?
Single Line
port?
Line Telephone port?
Telephone ?
[Figure 3-6] KEY/SINGLE LINE TELEPHONE WIRING
B. SINGLE LINE TELEPHONE
Maximum 7 Single Line Telephones(Extension #101~107) can be installed with GHX-308A Hybrid Key Telephone
System.
a) Extension #101~103 are universal ports that SLT or Key Telephone can be connected by user’s
selection.
In case of Single Line Telephone connection, the short pins of connector “CN101~103” on the MBU should be moved
“K/P” to “SLT” position and the Single Line Telephones connect to <T, R> terminals of connectors “S101~103” on the
MBU.
b) Extension #104~107 have only used the Single Line Telephones and connected to <T, R>
terminals of connectors “S104~107” on the MBU.
3.11 POWER FAILURE TRANSFER CONNECTION
