Nortel Networks 311 Receiver functions

982 NTBK50 2.0 Mb PRI card
Table412
Carrier Shield grounding switch settings
Switch Down (On) Up (Off)
SW 4 – 1 Rx– FGND Rx – OPEN
SW 4 – 2 Tx – FGND Tx– OPEN
Note: The usual method is to ground the outer conductor of the receive
coax signal.
Settings are shown in the Tablebelow.
Table413
Carrier shield grounding switch settings
Switch Down (On) Up (Off)
SW 4-1 Rx—FGND Rx—OPEN
SW 4-2 Tx—FGND Tx—OPEN
Note: The usual method is to ground the outer conductor of the receive
coax signal.
Table414 "Carrier Shield grounding switch settings" (page 982) lists the
Carrier Shield ground switch settings.
Table414
Carrier Shield grounding switch settings
Switch Down (On) Up (Off)
SW 4 – 1 Rx– FGND Rx – OPEN
SW 4 – 2 Tx – FGND Tx – OPEN
Note: The usual method is to ground the outer conductor of the receive
coax signal.
Receiver functions
The receiver extracts data and clock from an AMI (Alternate Mark Inversion)
coded signal and outputs clock and synchronized data. The receiver is
sensitive to signals over the entire range of cablelengths and requires
no equalization. The clock and data recovery meets or exceeds the jitter
specifications of the CCITT recommendation G.823 and the jitterattenuation
requirements of the CCITT recommendation G.742. This provides jitter
attenuation increasing from 0 dB to 60 dB over the frequency range from
about 6 Hz to 6 KHz.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright© 2003-2008, Nor tel Networks
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