Date printed: 24.01.12
87
D21m System
S2
5
6
7
8
1
2
3
4
ON
Default Setting:
S1
5
6
7
8
1
2
3
4
ON
Default Setting:
DIP Switches
S1
DIP switch for parameter/routing setting:
No. Setting
Default Setting
1 ON: Bypass rear
OFF
2 ON: Bypass front
OFF
3 ON: Front control
OFF
4 ON: HD card as host
OFF
5 not used
OFF
6
ON: +24 VDC supply switched to pins 1 and 2 of all RJ45 con-
nectors simultaneously (used for supplying OnAir 3000 desk
modules)
OFF
7
*
ON: HD card connect
ON
8
*
ON: HD card connect
ON
* Must be set to identical positions
S2
DIP switch for RS422 pinout selection of the
HOST/8-15
connector:
1
2
3
4
5
6
7
8 Setting
OFF OFF OFF OFF ON ON ON ON RS422 Controller pinout
ON ON ON ON OFF OFF OFF OFF RS422 Device pinout
(factory
default)
NO OTHER SETTINGS ALLOWED!
Connector Pin Assignment
HOST
(8pin RJ45)
1
8
Socket View
Pin RS422 Controller
RS422 Device
1
*
n.c.
*
n.c.
2
*
n.c.
*
n.c.
3 TxD +
RxD +
4 RxD +
TxD +
5 RxD –
TxD –
6 TxD –
RxD –
7 GND
GND
8 GND
GND
*
or +24 VDC if SW 6 of DIP switch 1 is set to ON
Note The three lower connectors
16-23
,
24-31
, and
32-39
are always wired in
‘controller’ mode and cannot be switched to ‘device’ mode.
