Skanti TRP 9250, Техническое руководство, Страница: 88 / 289

Transceiver Control Unit-to-Transceiver Unit connections
The cable at the Transceiver Control Unit is prepared by soldering D-sub connectors at both ends
as described below.
At the Transceiver Unit the cable is connected to one of the terminal strips marked "ScanBus".
Before contacts of plug are soldered: slide the
plastic cover over the cable.
Contact arrangement
(viewed from solder side)
After the contacts are soldered: latch the inner
and outer shields into the connectors from the rear
and snap in. Finally slide the plastic cover over the
shield and fix the two jack screws into the plastic
cover.
’ScanBus’
TU
Terminal no.
TCU
Connector pin no.
Designaltion Remarks
0 6 GND System GND
1 1 Supply On Common ’supply on’ signal for all xCUs on the ’ScanBus’.
Active when connected to ground
2 2 Data+ Data communication between units. CAN Net.
Baud rate: 76.8 kb/s. Spec.: ISO/DIS 11898
3 3 Data-
4 4 AF+ TX AF modulation including CW/TLX Tone Key.
Vnom = 0.775 Vrms diff.. Vmax= 12V Vpp diff.
5 5 AF-
6 6 GND System GND
7 7 +24V Supply voltage for all xCUs on the ’ScanBus’
8 8 RXAF+ RX AF signal. Vnom = 0.775 Vrms diff.. Vmax= 12V Vpp diff.
9 9 RXAF-
Cable clamp Shield Screen Screen connected to System GND.
The ScanBus termination jumper must be inserted (pos. 1) if the unit is at the end of the chain - or
removed (pos.2) if the unit is not at the end of the chain.
15mm
fig.15
5mm
screen (twisted)
conductor
(twisted)
fig.16
plastic cover
cable type:
see table
shield
jack screw
soldering
connector
fig.17
5
4
3
2
1
9
8
7
6
fig.18
INTERCONNECTION OF UNITS INSTALLATION
TRP 9250 TECHNICAL MANUAL 3-17