C&SM. customer and service information
CA. channel adapter
cache. A high-speed buffer storage that contains fre-
quently accessed instructions and data; it is used to
reduce access time.
CB. circuit breaker
CBA. controller bus adapter
CBC. controller bus coupler
CBR. circuit burst request
CBSA. controller bus and service adapter
(CBSP+CBC+TIC3)
CBSP. controller bus and service processor
CBTRA. controller bus and token-ring adapter
(TRP+CBC+TIC3)
CBTRM. cable terminator (IOC and DMA buses)
CCITT. Comite Consultatif International Telephonique
et telegraphique
CCU. central control unit
CDF. configuration data file (3745)
CDF-E. configuration data file extended (37CS)
CE. customer engineer
CEPT. Comite Europeen des Postes et Telecommuni-
cations
CLA. communication line adapter (CLP+LICnn)
CLDP. controller load/dump program
clear channel. Mode of data transmission where the
data passes through the DCE and network, and arrives
at the receiving communication controller (for example,
the IBM 3745) unchanged from the data transmitted.
The DCE or network can modify the data during trans-
mission because of certain network restrictions, but
must ensure the received data stream is the same as
the transmitted data stream.
CLP. communication line processor
CMIP. common management interface protocol
CNM. communication network management
CP. 1.communication processor 2.control program
3.circuit protector 4.control point
CPLR. coupler
CPN. customer problem number
CPx. FRU name of circuit protector
CRC. cyclic redundancy check character
CS. connectivity switch
CSA. common subassembly
CSB. connectivity switch bus
CSC. connectivity switch cable
CSCE. connectivity switch cable extension
CSM. centralized support module
CSP. central service point
CSS. control subsystem (3745)
CTDA. configuration target device (processor) address
dc. direct current
DCAF. Distributed Console Access Facility (licensed
program)
DCCS. DC to connectivity subsystem
DCE. data circuit-terminating equipment
DCDP. DC distribution and protection (box)
DCM. diagnostic control monitor
DCPW. DC power box
DICO. DMA IOC connection card
DM. distribution manager
DMA. direct memory access
DS. data storage
DSB. data storage bus
DSI. data storage interface
DSM. data storage manager
DSS. data storage interface for SBA
DSU. data service unit (DCE-like for high-speed com-
munication lines)
DTE. data terminal equipment
EC. engineering change
X-2
3746-900: Service Guide
Summary of Contents for FlashSystem 900
Page 1: ...3746 Nways Multiprotocol Controller Model 900 Service Guide SY33 2116 02...
Page 2: ......
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Page 29: ...Safety Figure 0 3 Ground Wire Connection On Controller Expansion SAFETY xxvii...
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Page 71: ...Safety...
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Page 92: ...Safety xc 3746 900 Service Guide...
Page 94: ...Safety xcii 3746 900 Service Guide...
Page 129: ...3746 900 FRU Exchange 010 continued Go to MAP Ready LED ON on page 1 52 Chapter 1 START 1 35...
Page 276: ...3746 900 MAPs Figure 2 6 CP2 Circuit 2 18 3746 900 Service Guide...
Page 325: ...3746 900 MAPs 026 continued Go to Step 014 on page 2 65 Chapter 2 MAPs for FRU Isolation 2 67...
Page 340: ...3746 900 MAPs 113 continued Go to Step 001 on page 2 68 2 82 3746 900 Service Guide...
Page 414: ...Service Processor MAPs 2 156 3746 900 Service Guide...
Page 484: ...FRU Exchange Figure 4 16 3746 Model 9x0 CBSP Cassette 4 18 3746 900 Service Guide...
Page 495: ...FRU Exchange Figure 4 23 3746 900 Rear of DC Power Box Chapter 4 3746 900 FRU Exchange 4 29...
Page 510: ...FRU Exchange Figure 4 39 3746 900 LIC16 Coupler 4 44 3746 900 Service Guide...
Page 520: ...FRU Exchange Figure 4 45 3746 900 Transformer Handling 4 54 3746 900 Service Guide...
Page 522: ...FRU Exchange 4 56 3746 900 Service Guide...
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