Extron electronic VLM 1000, VLM 2000 Reference Information, Specifications VLR 102 and VLR 102 SR

Reference Information

Specifications — VLR 102 and VLR 102 SR

Audio

Tone control.................................... On or off, switch selectable

Audio input

Number/signal type
VLR 102	1 infrared from VLM microphones
	1 mono, balanced, aux/mix input
	1 mono, balanced, from optional VLR 102SR
VLR 102SR	1 infrared from VLM microphones
	1 mono, balanced, from optional VLR 102SR
Connectors
VLR 102	(1) 3.5 mm captive screw connector, 3 pole, for aux input
	(1) RJ-45 female for input from a VLR 102SR
VLR 102SR	(1) RJ-45 female for input from a VLR 102SR

N0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu

Audio output

Number/signal type	1 mono, balanced, line level
Connector	(1) RJ-45 female (shared with power input and some serial communication)
Pin configuration	1 = mic +, 2 = mic -, 3 = aux +, 6 = aux -, 8 = GND
Nominal level	-10 dBV (316 mVrms)

IR sensor

Receiver type	Superheterodyne IR sensor
Photodiodes	6, radially spaced
Receiving frequencies	2.3 MHz, 2.8 MHz
Operating distance	40' (12.2 m) maximum, line-of sight, typical
Reception area	1600 square feet (148.6 square meters) per VLR 102
Reception angles	360° horizontal, 60° vertical

Control — host ports, VLR 102 only

Serial host port	1	RS-232, 3.5 mm captive screw connector, 3 pole
Baud rate and protocol	38400 baud, 8 data bits, 1 stop bit, no parity
Serial control pin configuration ..	1	= TX, 2 = RX, 3 = GND

Control — relay output, VLR 102 only

Number/type	1 normally open
Connector	(1) 3.5 mm captive screw connector, 2 pole
Pin configuration	NO = normally open, C = common
Contact rating	24 V, 1 A

Control — contact closure (VLR 102 only)

Number/type	1 contact closure input
Connector	(1)	3.5 mm captive screw connector, 2 pole
Pin configuration	IN	= contact input, GND = GND

2-18 VoiceLift Microphone Installation • Reference Information