Toshiba Strata CT, Installation & Maintenance Manual

Page: 76 / 385

Strata CT Installation
2-40
Strata CT I&M Manual October 2000
BCU Installation
CAUTION!
◆
Do not remove the plastic insulation shield from the back of the BCU PCB. If
the shield comes off, do not allow the back of the PCB to contact metal.
◆
The BCU PCBs are shipped from the factory with the battery jumper in the
“Off” position. Ensure it is moved to the “On” position before installing the
BCU to protect customer configuration information stored in the BCU RAM.
◆
The power supply must be off when installing the BCU PCB or damage to the
board could result.
1. Set the battery jumper, “BATT”, on the B1CU, B2CAU/B2CBU, B3CAU/B3CBU or
B5CAU/B5CBU, to the “On” position (see
Figures 2-24 ~ 2-30 and Tables 2-8 ~ 2-14 ).
2. Ensure the BCU has been configured for the appropriate hardware options (i.e., BRCS
or RKYS). See
“Internal Hardware Options” on Page 2-38 .
3. Insert the B1CU, B2CBU, B3CBU, or B5CBU (1, 2 or 3) into the “B101” slot in the
Base Cabinet. If B1CU and RSIU is installed, you must also install a ribbon cable
between them (
Figure 2-23 ).
Figure 2-23 Processor PCB Connectors and RSIU Placement
Ensure the component side of the BCU PCB is facing right when installing it in the Base
Cabinet.
4. Insert the B2CAU, B3CAU, or B5CAU PCB into slot B102.
5. After installing the BCU PCBs, gently pull it outward. If the connectors are properly
mated, a slight resistance will be felt.
B101 S_01 B102 S_02 S_03
Slot
B2CAU,
B3CAU or
B5CAU
B1CU (see Note),
B2CBU, B3CBU
or B5CBU
RSIU
RSIS or
RMDS
PDKU or
PEKU
Port 4
Port 3
Port 2
Port 1
Two-connector
ribbon cable
(supplied with
RCTU)
Three-connector
ribbon cable
(supplied with
RSIU)
5240
Note: B1CU doesn't use 2-connector ribbon;
There is no partner processor PCB.
H
C