Toshiba Strara CTX Series, Installation And Maintenance Manual, Page: 129 / 290

PCB Installation
4-7
Strata CTX I&M September 2002
BIOU – Option Interface Units
Circuits per PCB:
(see interfaces)
Interfaces with:
three music-on-hold sources, system page and control relays
Older Version(s):
none
The BIOU provides a Paging Output (amplified and non-amplified), four zone paging relays, three
Music-on-hold (MOH) interfaces and four control relays (Night Transfer, Night Bell and Background
Music (BGM) mute). One or two BIOUS can be installed in a Strata CTX.
BIOU controls, indicators, and interface connectors are shown in Figure 4-4 and described in Table 4-
5.
BIOU Installation
➤
Insert the BIOU (component side facing right) into any available PCB slot in the cabinet. See
“Strata CTX670 Cabinet Slot Configuration” on Page 1-23 . Apply firm, even pressure to ensure
proper mating of connectors.
Figure 4-4 BIOU PCB
5805
BIOU1A
600/600
600/600
600/600
600/600
B B B B N.C
M M M M N.O
Mu A
SW1
SW600
MOH3
MOH2
MOH1
SP
SP0 SP1
MOH3
MOH2
MOH1
SP
SW600
SP0 SP1
B B B B N.C
M M M M N.O
Mu A
SW1
J3
J2
J1
SW100
Control Relay
Jumpers