Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
35 Cards in this Set
- Front
- Back
- 3rd side (hint)
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HRPD
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High Rate Packet Data
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AT
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Access Terminal
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AM
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Access Manager
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F1
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384
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F2
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425
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F3
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466
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F4
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507
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F5
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548
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F6
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589
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F8
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770
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F10
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750
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UCR
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Universal CDMA Radio (5 MHz)
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CMU
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CE Card
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CTU
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Common timing Unit
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MCR
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Multi Carrier Radio
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15 MHz Radio.
up to 11 non-contiguous between carriers in one sector |
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EFIM
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Enhanced Freq Interface Module. Where T1s get punched down. Alarms
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IOU
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Input output unit
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Secondary Surge protect. connecting point for digital components that communicate with other components.. frame alarm connections.
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TDU
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Test and Diagnostic Units
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Not used when MCR's are used
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CDM
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CDMA Digital Module
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URC + CMUs
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OM
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Oscillator Module
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15 MHz Timing
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12C Bus
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Communication between IOU, CPCs, and TX Amps
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URC
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Universal Radio controler
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rMHz radio. up to 3 contiguous cars
URC=2 Cas, 4 T1 URC1.5=c Ca, 4 T1s URCII- 5 Cas, 8 T1s |
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LIU
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Line Interface Unit. Located on URCII
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Supports Ethernet Backhaul. MLG
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UMC
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Universal Monitoring Contoller. Located on URCII
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Signal link/ monitors hardware (RMT)
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OMR
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?
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OMQ
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?
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ARCNET Bus
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Connection between Timing and Radios
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I2C Bus
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alamrs, inventory to URC
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IEEE-1394 Bus
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between URCs and CMUs
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Defined on BTSEQP form
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CMU
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CDMA Modem Unit
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CE Cards. Can support, 2 Cars/3 sectors
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EVM
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????
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Process the user data from EVDO URC. One card required for each carrier in 3 sectors
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PkLAM
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? TxAmp
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1 CDMA car to 16/20 Watts
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P2PAM
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? TxAmp
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1 cars to 16/20 Watts
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CLGC
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Closed Loop Gain Control
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Used only in MCRs (4.0B's)
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DPD
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Digital Pre-Distortion
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