Appendix A: Cisco uMG9820 Technical Specifications

Table A-1 Technical Specifications for the Cisco uMG9820
Characteristic	Value
Physical
Dimensions	1.72 in. high x 18.98 in. wide x 21.41 in. deep (43.7 x 444.5 x 342.9 mm)
Mounting standard	1 RU, 19 in.
Weight	17.9 lbs (8.1 kg) typical (fully loaded)
Electrical
Input voltage	100-240 VAC
Input frequency	50-60 Hz
Input current	3 A max. at 100 VAC input
AC power connector	IEC 320 standard 6.3-A power entry module, RFI filtered, with metric fuse holder
Standards
EMI standards	CFR47: 2000, FCC Part 15, Subpart B for Class A
EMI standards	Industry Canada ICES-003 for Class A
Safety standards	CAN/CSA-C22.2 No. 60950-00, UL 60950
Agency approvals	Refer to Cisco uMG9820 QAM Gateway Regulatory Compliance and Safety Information
Environmental
Temperature	Operating: 40-104×F (10-40×C)
Temperature	Nonoperating: -40-158×F (-40-70×C)
Humidity (relative, noncondensing)	Operating: 20 to 90%
Humidity (relative, noncondensing)	Nonoperating: 5 to 95%
Altitude	Operating: sea level to 6562 ft (2000 M)
Altitude	Nonoperating: sea level to 15,748 ft (4800 M)






Inputs
Input interface	Redundant 1+1 port configuration
Input interface	SFP module connectors
LAN protocol	IEEE 802.3z
Data rate per port	1000 Mbps
Data format	UDP datagram encapsulation of MPEG-2 SPTS
	Maximum of 256 MPEG-2 SPTS encapsulated in UDP/IP
	Up to six PIDs per program (including ECM PID)
	Up to seven 188-byte MPEG-2 packets per UDP datagram
	3-4 Mbps per SPTS (nominal)
Processing features
Function capability	PID remapping
	PID filtering
	MPEG-remultiplexing
	PCR restamping
	MPEG-2 PSI extraction, generation, and insertion
	Input network jitter buffer (user-settable latency; max. 70 milliseconds)
Network management
Management connectors	RJ-45: 10BASE-T/100BASE-TX Ethernet for network management system (NMS)
	RJ-45: 10BASE-T/100BASE-TX Ethernet for conditional access system (CAS)
	EIA-232
Management protocols	BootP, DHCP
	SNMP v1, v2c
	TFTP
	Telnet
	Command-line interface (CLI)
RF output specifications
Modulation format	256QAM (64QAM not available in initial releases)
Framing structure, channel coding, modulation	Per ITU-T Recommendation J.83 Annex B
Output interface	F-connector (75-ohm impedance, nominal)
Monitor interface	MCX connector (50-ohm impedance, nominal)
Center frequency	225-900 MHz
Frequency step size	12.5 kHz
Frequency response	256QAM: 12% square-root raised-cosine shaping
	64QAM: 18% square-root raised-cosine shaping (64QAM not available in initial releases)
	Any 5-MHz band: +/- 0.25 dB
	Any 7-MHz band: +/- 0.4 dB
Frequency accuracy over time/temperature	+/- 20 kHz
Channel-to-channel level accuracy	+/- 0.7 dB
Group delay	Any 5-MHz band: 8 nsec p-p max.
Output levels	Total average block¹ power: 60 dBmV
	Step size: 0.1 dB (typical)
	Max. attenuated² block power: 50 dBmV
	Per-channel power: 57 dBmV
Gain control range	50-60 dBmV block power
Return loss	Inband: > 14 dB; 13 dB above 750 MHz
Spurious emissions and noise	In-channel, at max. power, center frequency +/- 3 MHz: < -48 dBc
Spurious emissions and noise	Broadband (50-860 MHz): < -60 dBc (with respect to total block power, including harmonics)
Isolation	RF chain to RF chain: < 50 dBc
Noise (phase) (standard 6-MHz CATV channels, double sideband)	1-10 kHz: < -40 dBc (< -50 dBc typical)
	10-50 kHz: < -40 dBc (< -50 dBc typical)
	50 kHz-3 MHz: < -51 dBc (< -55 dBc typical)
Noise (broadband)	< -9 dBmV (block power at 60 dBmV, plus average noise from all channels outside +/- 24 MHz from the band edges)
Noise (modulated adjacent) (2x dual-block channel-output version)	+/- 3-3.75 MHz: < -58 dBc (-61 dBc typical)
	+/- 3-3.75 MHz: < -59 dBc (-61 dBc typical)
	+/- 9-15 MHz: < -60.5 dBc (-63 dBc typical)

¹A "block" represents the entire RF signal (12 MHz) from each QAM port. The signal consists of two adjacent 6-MHz-wide QAM channels.

²An attenuator on the RF output provides up to 10 dB of attenuation (see "Gain Control Range," above).

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Cisco uMG9820 Technical Specifications