24
Expansion unit TS-918
Bridge unit
TS-919B1/919B4
Conference unit
TS-911/912/811/812
1
TS-919B1
EXPANSION
BRIDGE
BRIDGE UNIT
LAN cable (CAT-5)
1
TS-919B1
EXPANSION
BRIDGE
BRIDGE UNIT
LAN cable (CAT-5)
BRIDGE UNIT
EXPANSION
TS-919B4
BRIDGE
1
2
3
4
Communication cable
connection terminal
(Expansion unit side)
Conference
unit connection
terminal
Conference unit connection
terminal 1 – 4
Communication cable
connectionterminal
(Bridge unit side)
Bridge unit
(1-Conference unit connection type)
TS-919B1
Bridge unit
(4-Conference unit connection type)
TS-919B4
Communication cable
connection terminal
(Expansion unit side)
Communication cable
connection terminal
(Bridge unit side)
7.2. Expansion unit, Bridge Unit, and Conference Unit Connections
When connecting the Expansion unit to the
Conference Unit, the Bridge unit must be
installed between the two.
The Expansion unit is equipped with 3 Bridge unit connection terminals. When Bridge units are connected to
them, up to 8 Conference units can be connected for each terminal, and up to 24 units per Expansion unit.
Two types of Bridge units are available, the 1-Conference unit connection type and the 4-Conference unit
connection type.
The number of connection terminals for each type is as follows.
[Number of Bridge unit’s connection terminals]
Model No. Communication cable connection
terminal (Expansion unit side)
Conference unit connection
terminal*
1
Communication cable connection
terminal (Bridge unit side)
TS-919B1
1
1
1*
2
TS-919B4
1
4
1*
3
*
1
One Conference unit can be connected to each Conference unit connection terminal.
*
2
Either a TS-919B1 or TS-919B4 Bridge unit can be connected. In an exceptional case where 7 Bridge units
of 1-Conference unit connection type are connected to one of the Expansion unit’s Bridge unit connection
terminals, connect the 8th Conference unit, if needed, to the last-connected 1-Conference unit type Bridge
unit’s communication cable connection terminal (Bridge unit side).
*
3
Can be connected to a TS-919B1 or TS-919B4 Bridge unit. However, the Conference unit cannot be connected.
7.2.1. Bridge unit TS-919B1 connection
From Expansion unit TS-918 or
Bridge unit TS-919B1/919B4
To Bridge unit
TS-919B1/919B4
Bridge unit
TS-919B1
Conference unit
TS-911/912/811/812
1
TS-919B1
EXPANSION
BRIDGE
BRIDGE UNIT
LAN cable (CAT-5)
