LLZ 421
Operation and Maintenance Repair
ILS 420
6−63Ed. 01.10
SOAC
23 45 6 78
ON
1 9 23 41
S1
S2
10
2
3
1
BR1
Test
OFF
BU2
set
open
231
setopen
DEFINITION JUMP./POSITION REMARKS
Permanent transmission control S2.1
on OFF default setting
off ON −
Operation 1200/600 bit/s S2.2
1200 bit/s OFF default setting
600 bit/s ON −
Transmit level S1.9 S1.10
1 ±0 dBm OFF OFF −
2 −3 dBm ON OFF −
3 −6 dBm OFF ON default setting
4 −9 dBm ON ON −
NOTE: Some telephone networks may prohibit alteration of the transmit level.
Impedance during transmission S1.8
300 ohms OFF for remote side (e.g. RCSE)
600 ohms ON for station side
Receive level (min.) S1.7
−43 dBm OFF default setting
−33 dBm ON −
Carrier lag time S1.6
13 ms OFF −
3 ms ON default setting
S2−M2 lead time S1.5
30 ms OFF default setting
200 ms ON −
10 Dedicated or Party line Modem (LGM1200MD) 84045 83233 1 of 2
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