MCS-II
Industrial PA System, Distributed Amplifier
Non-blocking PA exchange, 24 to 112 ports, amplifier in every phone
112 ports max12 zones2000 m loop
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 it works
- 01
Field phones go where people work: WMHS-II or WMHF-II PA telephones on an MCS-II, or WMHS-IIIPT line-powered phones on an MCS-III.
- 02
Each phone runs back to the master control station on ordinary telephone cable: 0.5 mm 2-core twisted pair, with loops up to 2000 m on the MCS-II.
- 03
Dial a phone to page at that location, press a zone code or zone key to page one of up to 12 zones, or use all-call to reach every zone.
- 04
Lift the handset (MCS-II) or press TALKBACK (MCS-III) and the conversation goes private on its own channel.
- 05
The operator console in the control room pages, dials and monitors; up to 4 consoles per system.
- 06
Up to 4 trunk lines from the plant EPABX patch in, so office phones can reach the field.
Components
Grouped by architecture, as in the diagram above. Each card names the part's role in the system.
MCS-II · amplifier in every phone
Each field telephone has its own 30 W amplifier and horn; the master station switches calls and zones.
Master control station
Field PA telephone, handset
WMHS-II
PA Telephone, Handset Type
PA telephone with built-in 30 W amplifier; pages its own horn
30 W amplifier220/110 V AC24/50 V line
Field PA telephone, hands-free and vandal-resistant
WMHF-II
Pilfer-Proof PA Telephone, Hands-Free
Hands-free pilfer-proof PA phone with press-to-talk, no handset to break
Hands-free PTT30 W amplifierIP 65
Indoor / desktop PA telephone
WMHS-II ID
PA Telephone, Indoor / Desktop Type
Indoor desktop PA telephone with 30 W amplifier for an external speaker
30 W amplifier220/110 V ACIP 55
Operator console
OC-DTHS-II
Operator Console for MCS-II
Desktop console with zone and all-call keys for the MCS-II
10 W amplifier220/110 V AC< 15 W
MCS-III · central amplifiers
Line-powered field telephones; 250 W amplifier modules in the 19 in rack drive 100 V loudspeaker lines.
Master control station, 19 in rack
MCS-III
Industrial PA System, Central Amplifier
Central-amplifier PA exchange driving 12 loudspeaker zones on 100 V lines
112 ports max12 zones100 V line
250 W paging amplifier module
EXA PA 250
Paging Amplifier Module, 250 W
250 W rack amplifier module on 100 V lines for MCS-III, ISAS
250 W RMS100 V line19 in rack
Field telephone with PAGE and TALKBACK
WMHS-IIIPT
Industrial Telephone with Page & Talkback
Field phone with PAGE and TALKBACK buttons for MCS-III PA systems
PAGE / TALKBACKLine poweredIP 65
Operator console
OC-DTHS-III
Operator Console for MCS-III
Digital console for MCS-III with caller ID and 50-station phonebook
Caller ID50-station phonebook220/110 V AC
Shared and optional
Loudspeakers for either architecture, and the external amplifier that lets an MCS-II phone drive more horns.
Outdoor loudspeaker horn
LSOD
Industrial Loudspeaker Horn, Outdoor
Re-entrant ABS loudspeaker horn for outdoor plant paging
300–3400 Hz8 Ω0.8 kg
Indoor box speaker
External amplifier for extra horns (MCS-II phones)
EXA-I
External Amplifier
100 W external amplifier that adds horns to a SMART PA phone
100 W RMS220/110 V AC16 SWG steel