GAI-Tronics LE200-RM Rack-Mount Page/Party Line Extender - Manual (Page 40)

Pub. 42004-392G
M ODEL LE200-RM R ACK -M OUNT P AGE /P ARTY
®
L INE E XTENDER P AGE 38 of 56
e:\standard ioms - current release\42004 instr. manuals\42004-392g.doc
09/14
Table 33 below outlines the functions settings for DIP switch S2:
Table 33. Function Settings for DIP Switch S2
Function Setting
T1/E1 Selection
S2-1: OFF; T1 mode selected (default setting)
S2-1: ON; E1 mode selected
Receive
Equalizer Gain
Limit
E1
S2-2: ON; −12 dB Short Haul
S2-2: OFF; −43 dB Long Haul
T1
S2-2: ON; −36 dB Long Haul
S2-2: OFF; −30 dB Limited Long Haul (default setting)
Line Encoding
S2-3: ON; B8ZS or T1 or HDB3 for E1
S2-3: OFF; AMI (default setting)
Transmit LIU
Wave Shape
(Build-out)
E1
S2-4 S2-5 S2-6
ON ON ON 75 ohms
OFF ON ON 125 ohms
ON ON OFF 75 S ohms with High Return Loss
OFF ON OFF 125 S ohms with High Return Loss
T1
S2-4 S2-5 S2-6
ON ON ON DSX-1 (0 to 133 feet) 0 dB CSU (default setting)
OFF ON ON DSX-1 (133 to 266 feet)
ON OFF ON DSX-1 (266 to 399 feet)
OFF OFF ON DSX-1 (399 to 533 feet)
ON ON OFF DSX-1 (533 to 655 feet)
OFF ON OFF −7.5 dB CSU
ON OFF OFF −15 dB CSU
OFF OFF OFF −22.5 dB CSU
Receive LIU
Termination
S2-7: ON; S2-8: ON; Receive side termination disabled
S2-7: OFF; S2-8: ON; Receive side 120 ohms enabled
S2-7: ON; S2-8: OFF; Receive side 100 ohms enabled (default setting)
S2-7: OFF; S2-8: OFF; Receive side 75 ohms enabled
Transmit Data
Source
S2-9: ON; S2-10: ON; Standard data (default setting)
S2-9: OFF; S2-10: ON; Transmit pseudo-random bit sequence (PRBS)
S2-9: ON; S2-10: OFF; Transmit alternating ones and zeros
S2-9: OFF; S2-10: OFF; Transmit unframed all ones