Toshiba strata CT Installation & Maintenance Manual page 75

DTMF Receiver Unit (BRCS-4, BRCS-8, BRCS-12)
➤
To install an BRCS onto B1CU, B2CAU/B2CBU, B3CAU/B3CBU, or B5CAU/B5CBU
H
C
Figure 2-22
Strata CT I&M Manual October 2000
There are three BRCSs: the BRCS-4 has four DTMF receiver circuits; the BRCS-8 has eight
receiver circuits; and the BRCS-12 has 12 receiver circuits.The BRCS is shown in
Figure 2-22.
The B1CU can support up to 12 DTMF receiver circuits; all other processors can have up to
24 circuits. One BRCS can be installed on each processor PCB.
The DTMF receiver subassembly (BRCS) translates DTMF signals to data signals and
attaches to common control units with 4, 8, or 12 receiver circuits.
➤
Mate BRCS connectors (see
even pressure to the BRCS to ensure proper mating of the connectors. Connectors for
each BCU card are shown on
installed on each processor, allowing up to 12 DTMF receivers on B1CU and 24 on all
other processors.
Note
The BRCS connectors on these PCBs are positioned to allow installation of the
BRCS only in the proper position.
BRCS
Connector
BRCS Printed Circuit Board Connection Example
Note
Install the RSIU in slot 101 only and ensure ribbon cable connection to processor.
Figure 2-22) with the applicable BCU PCB. Apply firm,
Figures 2-22~2-30. One BRCS (4, 8, or 12) can be
J4
P1
UP
J1
BRCS
J3
BCU
Strata CT Installation
J2
BRCS
Connector
BRCS
Connector
5222
2-39