Nortel NT1R20 Description page 309

I
impedance 10, 30, 34
NT1R20 Off-Premise Station (OPS) Analog
Line Card 57, 60, 65, 66
NT8D02 Digital Line Card 206
NT8D09 Analog Message Waiting Line Card
220, 221
QPC192 Off-Premise Extension (OPX)
Analog Line Card 231, 233
QPC452 Basic 500/2500 Analog Line Card
244, 245
QPC578 Integrated Services Digital Line Card
(ISDLC) 258
QPC789 16-port Message Waiting Analog
Line Card 270
incoming (analog) calls 34
IPE (intelligent peripheral equipment) 15
architecture 18
comparison to PE modules 16
DS-30X loops 19, 21
installing line cards 11, 12
line cards for 7, 8
network connections 17
J
jumpers 14
field selectable settings symbol 55
NT1R20 Off-Premise Station (OPS) Analog
Line Card 65, 67
NT8D02 Digital Line Card 211, 212
NT8D09 Analog Message Waiting Line Card
227, 228
QPC192 Off-Premise Extension (OPX)
Analog Line Card 238, 239
QPC452 Basic 500/2500 Analog Line Card
250, 251
QPC578 Integrated Services Digital Line Card
(ISDLC) 263, 264
QPC789 16-port Message Waiting Analog
Line Card 276, 277
K
key systems
line cards for 8, 9, 10
L
LD 10 for configuring interface units 14, 65, 227,
238, 250, 265
LD 11 for configuring interface units 14, 198, 211,
253, 263
LD 15 for configuring interface units 227
LD 97 for configuring interface units 227, 238
line cards
described 6
for off-premise applications 7, 8, 10, 30, 48
installation 11
operation 40
analog line call connection sequence 34,
35, 36
analog line interface units 29
card LAN link 21
digital line interface units 32
DS-30X loops 19, 21
host interface bus 15
peripheral equipment 23
SL-1 Network loop signaling 28
SL-1 Network loops 26
selecting 7
Line side T-1 card 6
line unit address coding 23, 25
lines
number capacity of line cards 7
with long wire lengths 10
loop interfaces
TCM (time compressed multiplexed) data 33,
202, 203, 257
Page 285 of 290
Line cards