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Conductor cross section solid min.
Conductor cross section solid max.
Conductor cross section stranded min.
Conductor cross section stranded max.
Conductor cross section stranded, with ferrule
without plastic sleeve min.
Conductor cross section stranded, with ferrule
without plastic sleeve max.
Conductor cross section stranded, with ferrule with
plastic sleeve min.
Conductor cross section stranded, with ferrule with
plastic sleeve max.
2.7 Connecting RS-232
On the front of the device is the RS-232 port for remote control and configuration of the device with a PC with
the supplied Windows® Engineer software. To connect the Martin Audio Engineer to a PC use the supplied
RS232 cable only. This cable is 1:1 connected, fully wired, one side fitted with a Male DB9 connector, other side
a Female DB9 connector.
If a longer cable is required please observe that the maximum operational cable length is typically 45 feet.
Warning: if the users' PC uses a grounded power supply, make sure that the the Martin Audio Engineer
418 and the PC are on the same power distribution line to avoid data errors.
2.8 Connecting RS-485
On the rear of the device, next to the audio inputs, is the RS-485 port on a RJ-45 connector, used to connect
the Martin Audio Engineer 418 to the Martin Audio Engineer Remote or to an external third party control unit.
(e.g. Crestron/AMX). For communication protocol please refer to the Engineer software manual.
The maximum operational cable length is typically 1000 ft. on CAT-5 (Unshielded Twisted Pairs) cable.
The RS-485 connection includes a +5V power line for powering the Engineer Remote. (Please refer to
the wiring scheme in the chapter "Engineer Remote")
Warning: if an external third party control unit is used with the RS-485 port, this device must have a
double isolated power supply.
ENGINEERHARDWAREMANUAL1.1[1].doc
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0.2 mm
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0.2 mm
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