ASL INTERCOM MPS Series Installation Manual page 8

3.2.2 Emergency Applications
Connection Signals
From Audio
microphone
Microphone data
to wall socket
Power supply
PTT switch
Speak Now LED
Listen-in (optional)
From wall Audio
socket to
central rack
Microphone data
(normally
part of the
building Power supply
installation)
PTT switch
Speak Now LED
Listen-in (optional)
Other Ethernet and PoE
connections
USB
Audio input/music
Audio output/
headset
microphone
Contact input
Contact output
a) PTT (Push-To-Talk) and Speak Now LED connections are only required if the ASL hardware bypass emergency
microphone functionality is being used (with inputs 1 or 2 of ASL Voice Alarm Routers).
b) Refer to BS7671 (Requirements for Electrical Installations) or other appropriate local standards for guidelines on
maximum potential cable lengths given the actual installation parameters.
1) Excessively large RJ45 cables will not fit the strain relief guides. RJ45 plugs with excessively bulky rubber boot will
not fit the connectors on the MPS properly; see cable and rubber boot dimensions in Figure 1 (page 8).
!
!
Suitable CAT5 patch leads are supplied with the microphone (ASL P/N 208440).
2) Emergency Microphones that are used as location for display of mandatory EN 54-16 indications and controls
should have dual power supply: one power supply connected to ROUTER 1 port, and the other power supply
to ROUTER 2 port.
3) Headset microphone cannot be used in emergency mode.
4) For EMC compliance:
•
Screened cables must be used where specified.
•
All screen tails must be less than 3 cm.
Figure 1 RJ45 cable and rubber boot maximum dimension
MPS-Series – Installation Guide
Cable Description
1 twisted pair, overall screened
1 twisted pair, overall screened
2 twisted pairs, overall screened
1 twisted pair, overall screened
1 x 2-core, twisted, screened,
1.0 mm
1 x 2-core, twisted, screened,
1.0 mm
1 x 2-core, twisted, screened,
1.0 mm
1 x 2-core, screened, 1.0 mm
1 x 1-core, screened, 1.0 mm
1 x 2-core, twisted, screened,
1.0 mm
LAN cable
USB cable
1 x 2-core, screened
1 x 2 or 3-core, screened
1 x 2-core
1 x 2 or 3-core
U-0664-0174.doc – Issue: 07 complete, approved
Page 8 of 24
Termination Suggested Type
RJ45 (Mic Port) Suitable CAT5 STP or FTP
patch lead
RJ45 (Mic Aux Port) Suitable CAT5 STP or FTP
patch lead
• Wall socket: RJ45 Low Smoke and Fume (LSF)
(Mic Port)
Fire rated cable (e.g. Pirelli
FP200)
• Central rack: per
rack design
Fire resistant equivalents of
standard CAT5 cable can be
used
• Wall socket: RJ45 Low Smoke and Fume (LSF)
(Mic Aux Port)
Fire rated cable (e.g. Pirelli
• Central rack: per FP200)
rack design
Fire resistant equivalents of
standard CAT5 cable can be
used
RJ45 (Ethernet Port) Suitable CAT5 LAN cable
USB type B (USB Port) As required to connect to the
external device being used
3.5 mm jack plug (Mic) Suitably rated 2-core cable
3.5 mm jack plug (Mic) Suitably rated 2 or 3-core cable
3.5 mm jack plug (Mic) Suitably rated 2-core cable
3.5 mm jack plug (Mic) Suitably rated 2 or 3-core cable