PCB Installation
BIOU – Option Interface Units
4-6 Strata CTX I&M 10/02
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 4-3 and described in
Table 4-2.
BIOU Installation
➤ Insert the BIOU (component side facing right) into any available PCB slot in the cabinet. See
“Worksheet 6: Strata CTX670 Cabinet Slot Configuration” on page 1-36. Apply firm, even
pressure to ensure proper mating of connectors.
Figure 4-3 BIOU PCB
5805
BIOU1A
600/600
600/600600/600
600/600
B B B B N.C
MMMM
N.O
Mu A
SW1
SW600
MOH3 MOH2 MOH1 SP
SP0 SP1
MOH3 MOH2 MOH1 SP
SW600
SP0 SP1
BBBBN.C
MMMM
N.O
Mu A
SW1
J3 J2 J1
SW100
Control Relay
Jumpers
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