Crestron qm-ae Manuel D’Utilisation

QuickMedia™ Audio Extractor 

 

Crestron QM-AE 

Specifications for the QM-AE are given in the following table. 

Cresnet Power Usage 

5 W  (.21 A @ 24 VDC) 

Default Cresnet ID 

21 

Firmware Version 

1.14 

2-Series Control 
System Update Files

1,2

 

PRO2 minimum cuz version 3.17 or later 
MP2  minimum cuz version 3.139 or later 
QM-RMCRX minimum cuz 3.125 (without auto compensation) 
QM-RMCRX minimum cuz 3.147 or later (with auto 
compensation) 

Ports/Connectors  

QM 

Two QuickMedia 8-wire RJ-45 ports 
Connects via CresCAT-QM to a QuickMedia system. (Refer to 
the note following the specifications table) 

Cresnet 

Two 4-pin 3.5 mm detachable terminal blocks. Connects to 
Cresnet control network 

Line Out 

Three 3-pin detachable terminal blocks, audio line-level 
balanced output connectors for left, right and speech 

 

Maximum line-level output 

4 V

RMS

 (Balanced) 

2 V

RMS

 (Unbalanced) 

 Output 

impedance 

200 

Ω (Balanced) 

100 Ω (Unbalanced) 

 

Frequency response 

20 Hz to 20 kHz, +/- 0.5 dB 

 

Signal-to-noise ratio 

20 Hz to 20 kHz, 90 dB  
A-weighted 

 

Total harmonic distortion 

20 Hz to 20 kHz, 0.05% 

  Rack Space 

1 unit high, ½ unit wide 

Environmental 
Temperature 

41° to 104°F (5° to 40°C) 

Environmental Humidity 

10% to 90% RH (non-condensing) 

Dimensions & Weight 

Height: 

1.80 in (4.58 cm) 

Width: 

7.07 in (17.96 cm) 

Depth: 

6.33 in (16.08 cm) 

Weight:    2.00 lb (0.91 kg) 

Accessories 

ST-RMK Rack Mount Kit (Not included) 

1.  The latest software versions can be obtained from the Crestron website. Refer to the NOTE 

following these footnotes. 

2.  Crestron 2-Series control systems include the AV2 and PRO2. Consult the latest Crestron Product 

Catalog for a complete list of 2-Series control systems. 

NOTE:  Crestron software and any files on the website are for Authorized 
Crestron dealers and Crestron Authorized Independent Programmers (CAIP) 
only. New users may be required to register to obtain access to certain areas of 
the site (including the FTP site). 

NOTE:  Purchase CresCAT-QM for the most cost-effective cabling solution. 
For plenum applications, use CresCAT-QM-P. Maximum aggregate cable length 
is approximately 300 feet (with a delay skew of less than 22 ns) from QM 
transmitter to QM receiver. A maximum of two QM distribution centers may be 
inserted in-line (refer to page 9).