Cisco Cisco 1 GHz GainMaker Amplifier 데이터 시트
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Data is based on stations configured for two-way operation. AC currents specified are based on measurements made with typical
CATV type ferroresonant AC power supply (quasi-square wave), and Cisco GainMaker High Output System Amplifier power
supply (2.5A, 24 VDC, part number 4022846).
CATV type ferroresonant AC power supply (quasi-square wave), and Cisco GainMaker High Output System Amplifier power
supply (2.5A, 24 VDC, part number 4022846).
DC supply has a user configurable 30V, 40V, or 50 VAC under voltage lockout circuit. Default setting is 30V, 40V,
or 50 VAC. Under-voltage lockout may be selected by changing the position of the lockout jumper.
Note:
1.
Reference output tilt is specified as “LINEAR” tilt (as opposed to “cable” tilt).
2. Forward gain and noise figure measured with 0 dB input EQ and 1 dB input pad.
3. Down tilt, the effect of cable, is represented by a negative sign (-). Up tilt, the effect of equalization, is
represented by a plus sign (+).
4. Mixed loading of 79 analog channels (54
–554MHz) and SC-QAM’s (554–1218MHz) with 6 dB backoff
5. X-mod (at 15.75 kHz) specified using 100 percent synchronous modulation and frequency selective
measurement device.
6. Reverse gain and noise figure for station with 0 dB reverse input pad, 0 dB reverse output EQ, and 1 dB
output pad.
7. Reverse operational gain, noise figure, and return loss are specified without reverse switch option. If switch is
installed, reduce gain by 0.5 dB, increase noise figure by 0.5 dB, and decrease return loss by 1 dB.
8. Composite intermodulation noise is a broadband noise-like distortion product associated with QAM loading.
9. Distortion performance at reference output levels and tilt. Contact Cisco Engineering for CIN calculation.
Table 6.
Physical Specifications
Environmental
Operating temperature range
-40 - 140°F (-40 - 60°C)
Mechanical
Housing dimensions (L x H x D)
17.3 in. x 7.2 in. x 7.8 in. (439.4 mm x 182.9 mm x 198.1 mm)
Weight
● Housing with power supply
● Module
● Module
12 lb, 5 oz (5.6 kg)
5 lb, 5 oz (2.4 kg)
Unless otherwise noted, specifications reflect typical performance and are referenced to 68°F (20°C). Specifications are based on
measurements made in accordance with SCTE/ANSI standards (where applicable), using standard frequency assignments.
measurements made in accordance with SCTE/ANSI standards (where applicable), using standard frequency assignments.