Cisco Model D-PCG1000 PowerKEY CAS Gateway Installation Guide
Electrical Specifications
78-545617-01 Rev F
53
Specification
Parameter
Burst Alignment
Preamble detection, followed by unique word
correlation
Bit Error Rate (BER)
Better than 1 x 10
-8
@ 18 dB E
b
/N
0
(19.89 dB C/N)
over the full RF input range
Burst Noise Immunity
No lost cells for noise bursts up to -60 dBc/Hz, of
duration 1 µsec in any 350 µsec period
Baseband Interface
The following table lists the Baseband interface specifications for the QPSK
demodulator.
Specification
Parameter
Type
ATM-25 port; RJ-45 physical connect
Maximum Rate
25.6 Mbps
Connection Architecture
Star (from D9482, to multiple D9492s)
Datagram Paradigm
ATM cells w/AAL5
Diagnostic Port
The following table lists the specifications and connections for the diagnostic port of
the QPSK demodulator.
Specification
Parameter
Connector
Subminiature DB-9
Conductors
3: TxD, RxD, gnd
Data Rate
Variable, from 1,200 bps to 38,400 bps
Framing
8 data, no parity, 1 stop (8N1)
Messaging
ASCII text; full duplex