LLZ 421
Repair Operation and Maintenance
ILS 420
6−62 Ed. 01.10SOAC
23 45 6 78
ON
1 9 23 41
23 41
S1
S2
S3 (side view)
10
56
2
5
6
1
2
3
1
ST1
ST2
LB1
BU1
S4
BU3
D5
D4
OFF
OFF
ON
BU2
LB1 open : BU2 pin 25b = AF signal
LB1 closed : BU2 pin 25b = time slot
set
open
231
setopen
DEFINITION JUMP./POSITION
Dialing mode: automatic recognition of type of modulation, V.25bis, auto reliable mode,
flow control with RTS/CTS (S2/M2), autobaud (AT), pulse dial mode
S1.1 S1.2 S1.3 S1.4 S1.5 S1.6 S1.7 S1.8 S1.9 S1.10
OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF
S2.1 S2.2 S2.3 S2.4 S3.1 S3.2 S3.3 S3.4 S3.5 S3.6
OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF
Dedicated line mode: V.32 (9600 bit/s), error correction with direct mode 10 bit/sign, flow control with
RTS/CTS (S2/M2), autobaud (AT), 2−wired dedicated line
S1.1 S1.2 S1.3 S1.4 S1.5 S1.6 S1.7 S1.8 S1.9 S1.10
ON ON OFF OFF ON ON OFF ON ON OFF for RCSE/RMC
ON ON OFF ON ON ON OFF ON ON OFF for NAV−LCU
S2.1 S2.2 S2.3 S2.4 S3.1 S3.2 S3.3 S3.4 S3.5 S3.6
OFF OFF OFF OFF OFF ON OFF OFF OFF ON
ST1 Receive level range:
Level at Z ST1
−43 dBm 1−2 (delivery setting)
−33 dBm 2−3
ST2 Transmit level range:
Switched line at Z ST2 Dedicated line (600
ST2
−4,5 dBm 3−5 −6 dBm 3−5
−6,5 dBm 5−6 −8 dBm 5−6
−8,5 dBm 3−4 (default setting) −10 dBm 3−4
−10,5 dBm 1−2 −12 dBm 1−2
NOTE: Some telephone networks may prohibit alteration of the transmit level.
9 Switched or Dedicated line Modem (LGM28.8) 84045 83245 1 of 1
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