Toshiba DK14 Installation And Maintenance Manual page 309

Table 7-14 B2CAU Controls, Indicators, and Interface Connectors
Control/Indicator/Connector
DTMF Receiver Connector P3
DTMF Receiver Connector P4
DTMF Receiver Connector P5
Connector P10
Connector P11
BATT P9
MOH/BGM Source Connector
MOH/BGM Source Volume Control
VR1
BRCS
Connector
(J1 to P3)
B2CBU
Connector
B2CBU/RSIU
Connector
BGM/MOH
Volume Control
BGM/MOH
Interface
(RCA Jack)
Figure 7-27 B2CAU PCB
Strata DK I&M 5/00
Type of Component
16-pin male connector
10-pin male connector
6-pin male connector
Connector for ribbon
cables
Connector for ribbon
cables
3-terminal jumper
RCA jack
Trim potentiometer
UP
IC10
B2CAU1A
Step 6: BCU Processor PCBs
Description
Interface connector for optional DTMF receiver
subassembly (BRCS).
Interface connector for optional DTMF receiver
subassembly (BRCS).
Interface connector for optional DTMF receiver
subassembly (BRCS).
Ribbon cable connector for connection to
B2CBU.
Ribbon cable connector for B2CBU and RSIU.
Interface connector for on-board lithium
battery that protects configuration data stored
in system RAM.
Interface connector for MOH/BGM source.
Adjusts volume for MOH/BGM source
connected to B3CAU.
BRCS
P4
Connector
(J4 to P4)
BRCS
P5
Connector
(J3 to P5)
Backplane
Connector
5024
DK424i Installation
7-47