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SX-200 General Information Guide
Bay Control Card
The bay control card provides control of operations within the cabinet and monitors the lines,
trunks and other circuits within the bay. Reports are sent to the Main Control Card via HDLC
message links. One bay control card is required in each cabinet.
The bay control cards are BCC II and BCC III. The BCC III offers more processing power for
the BRI cards. The BCC III also supports a DSP module (single), a T1/E1 module, and a FIM
II or CIM. The T1/E1 module and the FIM II provide a cost-effective solution for T1 network
connectivity for a remote system. The CIM offers extra savings for a co-located system. The
DSP module supports the ONS/CLASS Line card and the Record a Call feature. The
Maintenance module provides serial connectivity in a main control cabinet for BRI card
maintenance, when both cards are in the main control cabinet.
Control Dual FIM Carrier Card
The Control Dual FIM Carrier card provides the interface between the MCC and the peripheral
cabinets. It includes one onboard 1 km FIM and a connector for a second FIM. The Control
Dual FIM Carrier connects to the backplane via slot 10 or 11 in the SX-200 EL or slot 10 in
SX-200 ML (RM) Control cabinet.
Control Triple FIM Carrier Card
The Control Triple FIM Carrier card provides the interface between the MCC and the peripheral
cabinets. It includes two onboard FIMs and a connector for a third FIM. The Control Triple FIM
Carrier connects to the backplane via slot 10 or 11 in the SX-200 EL Control cabinet.
Three types serve our customers:
Control Triple FIM Carrier Card MM 1km - has two muti-mode 1 km FIMs onboard and a
connector to plug in a third optional FIM (either a 1 km FIM or an extended FIM).
Control Triple FIM Carrier Card MM 5km - has two muti-mode 5 km FIMs onboard and a
connector to plug in a third optional FIM (either a 1 km FIM or an extended FIM).
Control Triple FIM Carrier Card SM 14km - has two single mode 14 km FIMs onboard and
a connector to plug in a third optional FIM (either a 1 km FIM or an extended FIM).
Control Triple CIM Card
The Control Triple CIM Card provides three onboard copper interface modules. The card also
has a connector for a FIM II so that a FIM II can replace one of the CIM circuits. Any SX-200
rack-mount control cabinet supports the Control Triple CIM Card. The Control Triple CIM Card
is backwards compatible for the SX-200 EL and SX-200 ML systems.
PRI Card
The PRI card provides the SX-200 EL and SX-200 ML systems with Primary Rate Access
(PRA) to the ISDN service provider. The PRI card, preloaded with software, comes with a T1/E1
module that supports up to two T1 links of ISDN connectivity. The PRI card is installed in the
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