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DIP Switch Settings (S2, S3)
Switch Settings for Switch S2
T1/E1 Selection
S2-1: OFF T1 Mode Selected default
S2-1: ON E1 Mode Selected
Receive Equalizer Gain Limit (EGL)
E1
iVIEW
2
S2-2: ON -12 dB (Short Haul)
iVIEW
2
S2-2: OFF -43 dB (Long Haul)
iVIEW
2
T1
iVIEW
2
S2-2: ON -36 dB (Long Haul)
iVIEW
2
S2-2: OFF -30 dB (Limited Long Haul)
iVIEW
2
default
Line Encoding
iVIEW
2
iVIEW
2
S2-3: ON HDB3 (E1) / B8ZS (T1)
iVIEW
2
default
S2-3: OFF AMI
(Required for Passive Mode)
iVIEW
2
Transmit LIU Waveshape (Build-out)
E1
S2-4: ON S2-5: ON S2-6: ON 75 ohms
S2-4: OFF S2-5: ON S2-6: ON 125 ohms
S2-4: ON S2-5: ON S2-6: OFF 75 S ohms w/ High Return Loss
S2-4: OFF S2-5: ON S2-6: OFF 125 S ohms w/ High Return Loss
T1
S2-4: ON S2-5: ON S2-6: ON DSX-1 (0 to 133 ft) 0 dB CSU default
S2-4: OFF S2-5: ON S2-6: ON DSX-1 (133 to 266 ft)
S2-4: ON S2-5: OFF S2-6: ON DSX-1 (266 to 399 ft)
S2-4: OFF S2-5: OFF S2-6: ON DSX-1 (399 to 533 ft)
S2-4: ON S2-5: ON S2-6: OFF DSX-1 (533 to 655 ft)
S2-4: OFF S2-5: ON S2-6: OFF -7.5 dB CSU
S2-4: ON S2-5: OFF S2-6: OFF -15 dB CSU
S2-4: OFF S2-5: OFF S2-6: 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
S2-7: OFF S2-8: OFF Receive Side 75 ohms Enabled
Transmit Data Source
iVIEW
2
S2-9: ON S2-10: ON Standard Data
iVIEW
2
default
S2-9: OFF S2-10: ON Transmit Pseudorandom Bit Sequence (PRBS)
iVIEW
2
S2-9: ON S2-10: OFF Transmit Alternating Ones and Zeros
iVIEW
2
S W I T C H S 2
S2-9: OFF S2-10: OFF Transmit Unframed All Ones
iVIEW
2