IBM 3745 Series, Hardware Maintenance Reference

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level 3 interrupt request (CA) 7-16
level 5
I/O error (CCU) 2-47
LIB1/LIB2/LIB3 4-8
LIC (line interface coupler)
definition 4-9
disabled 4-31
enabled leads
4-31
LIC line analysis procedures 4-99
line weight 4-11
modem-in process for non X.21 lines 4-48
modem-in process for X.21 lines 4-48
reset 4-38, 4-42
serial link connection to LICs5/6
4-34
swap 4-46
LIC board 1-10
definition 4-8
LIC board addressing 3-38
LIC boards 01L-A1 and 01L-A2 DC voltages and toler-
ances 10-12
LIC boards 01M-A1 and 01M-A2 DC voltages and toler-
ances 10-12
LIC type 4
personalization 4-48
LIC type 5
configuration from PKD 4-77
multipoint 4-59
panel 4-65
point-to-point 4-58
PT2/3 connection
4-79
to 586X or 786X connection 4-58
to 586Xs connection 4-59
to LIC type 5 connection point-to-point 4-58
to LICs type 5 connection multipoint 4-59
to one tailed 586X connection multipoint 4-60
to tailed 586X connection 4-59
point-to-point 4-59
LIC type 5 (DCE function)
alarm tone detection 4-72
backup speed 4-70
card EC level 4-70
carrier detector sensivity 4-69
CCITT 4-70
CCITT mode
4-62, 4-63
configuration 4-73
configuration commands
4-70
configuration options 4-60
configurations 4-58
data encoding and modulation
4-61
data flow 4-57
DCE address 4-69
DCE to telephone line interface 4-63
default speed 4-69
host support 4-70
line quality threshold 4-69
line specifications 4-65
LIC type 5 (DCE function) (continued)
line spectrum 4-65
LPDA-2 hit count threshold 4-69
LPDA*-2 enabled 4-70
maintenance approach 4-57
manual tests 4-72
microcode EC level 4-70
multipoint - LIC type 5 to 586Xs 4-59
multipoint - LIC type 5 to LICs type 5 4-59
multipoint - LIC type 5 to one tailed 586X 4-60
native mode 4-62, 4-63
options and configurations 4-67
point-to-point - LIC type 5 to 586X or 786X 4-58
point-to-point - LIC type 5 to LIC type 5 4-58
point-to-point - LIC type 5 to tailed 586X 4-59
point-to-point/multipoint 4-69
problem determination commands
4-70
receive level threshold 4-69
RFS delay 4-64
speed setting 4-58
speeds 4-57
surge protection
4-64
tone characteristics 4-72
transit time 4-64
transmit clock control 4-69
transmit level 4-69
TSS commands 4-71
LIC type 6
plugging limitations 4-11
LIC type 6 (DSU/CSU function)
alarm tone detection 4-87
configuration 4-89
configuration options
4-82
configurations 4-81
connection to US DDS
4-80
data flow 4-80
data format 4-82
DCE address 4-86
DDS loop 4-87
DSU/CSU configuration 4-88
DSU/CSU information 4-88
DSU/CSU to line interface 4-82
DSU/CSU/LD 4-86
host support
4-86
limited distance connection 4-80
line specifications 4-84
local loop back 4-89
maintenance 4-80
manual tests
4-91
modulation 4-82
network services
4-86
options and configurations 4-85
panel 4-84
PKD command rejection
4-89
PKD use 4-88
point-to-point/multipoint 4-86
Index
X-29