MCS-II

Industrial PA System, Distributed Amplifier

Name: SMART MCS-II Industrial PA System, Distributed Amplifier
Brand: SMART
SKU: mcs-ii

Non-blocking PA exchange, 24 to 112 ports, amplifier in every phone

112 ports max12 zones2000 m loop220/110 V AC

Datasheet · PDF 1.2 MB

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Category: Plant Communication (PA) Systems
Environment: Indoor · Outdoor
Interface: Analogue

Ideal for

Cement plants
Steel plants
Power generation facilities
Fertilizer plants
Large and medium-scale industrial units

What it does

Plant-wide paging without a central amplifier rack. The 100% non-blocking MCS-II master control station links SMART PA telephones, each with its own 30 W amplifier, for individual, zone and all-call paging plus private intercom. Telephone-grade cable runs up to 2000 m to each location, and up to 4 EPABX trunk lines patch in outside calls.

01
24 ports, expandable to 112 in multiples of 16
02
Up to 12 zones of up to 12 PA telephones; all-call up to 64 ports
03
Loops up to 2000 m on 0.5 mm 2-core twisted telephone cable
04
Amplifier in each PA telephone: no high-power amplifier, no 19 in rack
05
Up to 4 operator consoles and up to 4 EPABX trunk lines
06
Expands without hardware change

Specifications

Electrical · 6

Power supply	220 V / 110 V AC
PA telephone line	40 V
Power consumption	< 100 W
Insulation	600 V for 3 min between power source & telephone line
Ringer voltage	50 V AC (100 V PP)
UPS load	MCS 24 ports 50 VA (RMS) / peak 90 VA; MCS 112 ports 130 VA (RMS) / peak 220 VA; PA telephone 30 VA / peak 55 VA; operator console 20 VA / peak 45 VA

Acoustic · 1

Loudspeakers	LSOD outdoor horn, LSIN indoor box speaker

Mechanical · 5

Dimensions	320 × 380 × 200 mm
Weight	8.5 kg
Housing	16-gauge powder-coated steel body
Mounting	Vertical wall / desktop
Junction box	JB-II – 16-gauge steel, integrated canopy, single PCB with surge protection, wall mount

Environmental · 2

Moisture resistance	0 to 95% humidity with PCB conformal coated
Temperature	0 to +60 °C

Connectivity · 5

Loop length	Long loop supported (up to 2000 m)
EPABX patching	Up to 4 trunk lines of plant EPABX to extension tie lines of MCS
Dialling	Tone
Cabling	0.5 mm 2-core twisted telephone cable MCS to each location; 1.5 sq mm 3-core power cable; 0.75 mm 2-core flexible cable to loudspeaker horns
Field units	SMART PA telephones WMHS-II, WMHF-II

Operation · 5

Architecture	100% non-blocking TDM/PCM
Ports	Minimum 24; expandable up to 112 PA telephone ports; installation in multiples of 16
All call	Up to 64 PA telephone ports
Zones	Up to 12 predefined zones; up to 12 PA telephones per zone
Operator consoles	Up to 4 (DTHS-II)

Compare with similar models

Differences first: interface, power, protection and output, then installation. Full specifications are in each model's table.

Comparison of MCS-II with similar models. Rows that differ come first; “Not specified” means the datasheet does not list it.
Specification	MCS-II Industrial PA System, Distributed Amplifier	MCS-III Industrial PA System, Central Amplifier	MINI MCS-II Compact Industrial PA System	WMHS-IIAD Addressable PA Telephone
Interfacediffers	Analogue	Analogue	Analogue	Stand-alone
Power supplydiffers	220 V / 110 V AC	220/110 V AC	220 V / 110 V AC	220 V AC / 110 V AC (switchable)
Power consumptiondiffers	< 100 W	< 100 W	< 35 W	< 35 W
UPS loaddiffers	MCS 24 ports 50 VA (RMS) / peak 90 VA; MCS 112 ports 130 VA (RMS) / peak 220 VA; PA telephone 30 VA / peak 55 VA; operator console 20 VA / peak 45 VA	MCS 24 ports 160 VA (RMS) / peak 240 VA; operator console 20 VA / peak 25 VA; EXA PA 250 320 VA / peak 450 VA	Not specified	50 VA (RMS), peak 90 VA
Insulationdiffers	600 V for 3 min between power source & telephone line	600 V for 3 min between power source & telephone line	Not specified	600 V for 3 min between power source & signal line
Environmentdiffers	Indoor, Outdoor	Indoor, Outdoor	Indoor	Indoor, Outdoor
Mountingdiffers	Vertical wall / desktop	Not specified	Not specified	Vertical wall / panel
Cablingdiffers	0.5 mm 2-core twisted telephone cable MCS to each location; 1.5 sq mm 3-core power cable; 0.75 mm 2-core flexible cable to loudspeaker horns	0.5 mm 1-pair telephone cable MCS to each location; 0.5 mm 2-pair cable to operator console; 0.75 mm 2-core flexible cable from amplifiers to horns	Not specified	Not specified
Portsdiffers	Minimum 24; expandable up to 112 PA telephone ports; installation in multiples of 16	Minimum 24 industrial telephone ports, expandable up to 112; 16-line telephone cards	Maximum 32	Not specified
Dimensionsdiffers	320 × 380 × 200 mm	Rack mounted	Not specified	360 × 160 × 180 mm
Weightdiffers	8.5 kg	8.5 kg	Not specified	5 kg
Housingdiffers	16-gauge powder-coated steel body	16-gauge powder-coated steel body	16-gauge powder-coated steel body	16 SWG powder-coated steel body

Part of a system

Plant PA system

Paging and private talk across a whole plant, in two architectures. MCS-II puts a 30 W amplifier in every PA telephone and needs no amplifier rack; MCS-III keeps line-powered phones in the field and drives 100 V loudspeaker lines from central 250 W amplifiers.

How the system works