IBM 3745 Series Service Functions page 295

L1Cx line interface coupler type x (card) MIP Maintenance Information Procedures
LID line interface display MIR Maintenance Information Reference
L1U
line interface coupler unit MIT MOSS interface table
L1U1
L1C unit 1 for L1Cs type 1, 3, and 4 MLC
machine level control
L1U2 L1C unit 2 for L1Cs type 5, and 6 MLT machine load table
LLB local loopback MMIO memory mapped input/output
LLiR low-level interrupt request MOD modifier
LL2 link level 2 test MOSS maintenance and operator subsystem
LNVT line vector table MPC MOSS processor card
LPDA Link Problem Determination Aid MPS multiple port sharing
LRU least-recently used ms millisecond
LS local storage MSA machine status area
LSAR local storage address register MSA multi station access unit
LSI large scale integration MSC MOSS storage card
LSR local storage register (CSP) MSD machine status display
LSS low-speed scanner MUX multiplex function
LSSD level-sensitive scan design NAK negative acknowledgment character
LT local test
(BSC)
LU logical unit
NCCF
Network Communications Control
Facility
m meter
NCP Network Control Program
rnA
milliampere
NCTE network communication terminal equip-
MAC MOSS adapter card ment
MAP maintenance analysis-procedure NLDM Network Logical Data Manager
Mb megabyte; 1 048 576 bytes NMPF network management program facilities
MCA MOSS console adapter card NMVT network management vector transport
MCPC machine check/program check NOSP network operation support program
MCC MOSS control card
(VTAM)
<
D> Use storage
MCF microcode fix
NPDA Network Problem Determination Appli-
cation
MCT machine configuration table
NPM NetView performance monitor
MOOR MOSS data operand register
NPSI
network packet switching interface
MDR miscellaneous data record
NRZI see NRZ-1
MERR MUX error
NRZ-1
non return-to-zero change on ones
MES miscellaneous equipment specification
recording
MFM
modified frequency modulation
NSC native subchannel (address)
MHz megahertz NTO Network Terminal Option
MICB MOSS interface control block NTT
Nippon Telegraph and Telephone
min minute
(Japanese PTT)
MIO MOSS input/output
OCR OR character register
MIOC MOSS I/O control bus
ODG offline diagnostic
MIOH MOSS input/output halfword
OEM original equipment manufacturer
MIOHI MOSS input/output halfword immediate
OEMI original equipment manufacturer's
interface
X-4
3745 Communication Controller