User`s manual

LBI-39117
4
this design, one module can completely fail without
"downing" the Compact CEC.
Since each module has its own power cord, two (2)
separate circuit breaker-protected and UPS-protected ac
power sources can be employed for optimum power supply
redundancy. This is the recommended installation method
since Compact CEC operation will not be interrupted if one
ac power source or UPS fails. Within the Compact CEC
cabinet, the two power cords from the RPS unit are plugged
into two separate ac power strips horizontally-mounted
above the RPS unit. The cabinet fan is also plugged to one
of the ac power strips.
UPS-protected ac power is recommended. A fully-
loaded Compact CEC cabinet requires a maximum of
approximately
700 watts of ac power under worst case
conditions. UPS equipment should be rated accordingly. The
above wattage value assumes two (2) slots are empty in the
upper Card Cage (Card Cage 1), 19 slots are empty in the
lower Card Cage (Card Cage 2), one uplink GETC is
installed and the cabinet fan operates at high-speed at all
times.
UPS hold-up time should meet the specific installation
requirements. Typically, the UPS equipment should provide
power until a back-up generator can be brought on-line. In
addition, UPS equipment used with the Compact CEC
should have a specified switch-over time of less than 20
milliseconds.
AC-line circuit breakers should be located within four
(4) feet of the UPS equipment. Circuit breakers can be
housed in cable trays above the cabinets or in wall-mounted
breaker boxes.
Although not recommended, the entire Compact CEC
cabinet can be protected by a single UPS. Because only one
UPS is used, only one ac receptacle and one circuit breaker
are required to support the Compact CEC cabinet. In this
installation, cords from both ac power strips are plugged
into the sole UPS. Since the complete cabinet is powered by
a single UPS, failure of the UPS could "down" the Compact
CEC and thus effect the C3 Advantage dispatch system
greatly.
WARNING
DO NOT
connect the ac power cords from the ac
outlet strips to any ac power source(s) at this time.
This procedure is described in the "
COMPACT
CEC POWER-UP PROCEDURE
" section of this
manual.
IN-CABINET DC POWER CABLES
DC power interconnections between the Compact
CEC's RPS unit and its two Card Cages are provided by two
separate but identical power cables – part number
19D903309P1. These cables are factory installed and should
not normally require any changes during the Compact CEC
installation process. Simply verify each cable is connected
between the respective Backplane connectors as shown in
LBI-39116.
DC power interconnections between the RPS unit and
the GETC are provided by two additional cables – part
numbers 188D6159P1 and 19B801676P1. An in-line fuse in
cable 188D6159P1 provides short-circuit protection for the
GETC and the RPS. These cables also carry uplink modem
signals between terminal block TB10 on the back of the
GETC and Data Concentrator Card A2. Both cables are
factory installed and should not require any changes at
installation.
❏
Verify the connectors have not come loose during
shipment and they are interconnected as shown in
the Application Assembly Diagram within
LBI-39116. Also see Figure 5 in this manual.
LOCAL BUS CABLES
In the Compact CEC's upper Card Cage (Card Cage 1),
Local Bus Cables join digital buses between adjacent Card
Cage board slots so data can be transferred between the
Controller Board and Audio Board(s) within a given
interface module. These cables are factory installed and
should not normally require any changes during the
installation process. Repositioning of a Local Bus Cable
may affect board-to-slot positioning and the connection
location of the Concentrator Card Cable at the Backplane.
Therefore, changes to these cables should not be
performed.
❏
Verify each cable is connected between two (2)
adjacent Backplane connectors in accordance with
Figures 5 thru 9 in this manual. The lower Card
Cage (Card Cage 2) is the CIA rack; the boards in
this cage do not require any Local Bus Cables.
TERMINATOR BOARDS
There is a total of four (4) Terminator Boards within the
Compact CEC cabinet. Two (2) are located on the upper
Card Cage (Card Cage 1) and two are located on the lower
Card Cage (Card Cage 2 – the CIA rack). Each Terminator
Board plugs onto connectors on the respective Card Cage's
Backplane located on the rear of the cage.
WARNING