ENLARGE 
LM100 Front Panel
Display and Controls
Intuitive, easy-to-read user interface; input source selection determines display parameters
Keypad
Enables local control of setup functions and status display
Alarm LEDs
Audio alarm, fault, and error
Headphone Output
6.35 mm (1/4-inch) standard stereo headphone jack, level-adjustable for confidence monitoring
RS-232 Serial Remote Control Input Port
8-pin female mini-DIN connector for the LM100 software remote application and software upgrades
LM100 Rear Panel
Digital Audio Input
BNC female connector with loop-through, unbalanced, 75Ω, signal levels per AES-3ID-1995 (SMPTE 276M), external 75Ω termination required Formats supported: PCM data up to 24 bits; Dolby E data supported in 16-, 20-, and 24-bit modes at 48 kHz; Dolby Digital (AC-3) data at 32, 44.1, and 48 kHz sample rates
Analog Audio Inputs
Two Neutrik® combination XLR/¼-inch TRS connectors, electronically balanced Maximum input level: ~ +22 dBu Input impedance: 10 kΩ User-definable nominal operating levels
Analog Audio Outputs
Two RCA-type connectors, unbalanced, stereo; maximum output level: 2 Vrms into a 10 kΩ load per IEC 61938
Timecode Input (LM100-LTC version)
BNC female, unbalanced, per SMPTE 12M-1999
RF Input (LM100-NTSC version)*
F-type female connector with internal 75Ω termination Tuner frequency range: 55.25– 801.25 MHz Supports BTSC encoded stereo signals Selectable CATV or “off-air” modes CATV mode supports the Cable Television Channel Identification Plan per EIA 542 (User-selectable: Standard, HRC, or IRC) Video output: composite, BNC female
RS-485 Serial Remote Control
Input Port 9-pin female D-connector for remote control and software upgrades
Alarm Port
9-pin female D-connector, 0–5 V TTL level User-definable alarms: input clip detection, modulation overload, loudness above threshold, loudness below threshold (silence), dialnorm threshold, and AES input loss
General Purpose Input/Output Port
9-pin female D-connector, 0–5 V TTL level Functions include: measurement pause, measurement reset, input source select, channel up/down (LM100-NTSC only), measurement state
Core Measurement Algorithm (User Selectable)
ITU-R BS.1770-1
Leq(A)
Dialogue Intelligence Algorithm
Proprietary; patent pending
Audio Sampling Rates
32, 44.1, and 48 kHz
Measurement/Analysis System Log
480 events stored in internal nonvolatile RAM
Unlimited event storage and retrieval with use of LM100 software remote application on a PC
Power Requirements
90–264 VAC, 50–60 Hz, auto-sensing, 15 W maximum; designed to operate from a centrally switched power source
Dimensions and Weight
1-U rackmount: 44 × 483 × 375 mm (1.75 × 19 × 14.75 inches)
Net: 2.5 kg (5.5 lb)
Environmental Conditions
Operating: 0°C–50°C (32°F–122°F), natural convection cooling, 0%–98% relative humidity (noncondensing)
Nonoperating: –20°C to +70°C (–4°F to 158°F)
Regulatory Notices
North America: This unit complies with the limits for a Class A digital device pursuant to Part 15 of the FCC rules and Industry Canada ICES-003 Class A requirements. It is UL Listed for the US and Canada.
Europe: This unit complies with the requirements of Low Voltage Directive 73/23/EEC and EMC Directive 89/336/EEC and carries the CE marking accordingly.