10
ASYNC MP LINE DRIVER CARD
3.3 Special Configuration
If your installation requires special configuration of the Card, use
Table 3-1
as a
guide. It shows all possible Card switch settings. Following the table are brief
descriptions of the Control Input, Control Output, +Voltage Output and Carrier
Controlled by (Cin) parameters shown in the table.
Table 3-1. Configuration Settings.
Mode
Control
Control
+Voltage Carrier
Switch Settings
(DCE/DTE)
Input Output
Output
Controlled
1
2
3
4
5
6
7
(Cin)
(Cout)
(Vout)
by (Cin)
DCE
4
8
6
Disabled
ON
ON
ON
OFF OFF OFF OFF
DCE
4
8
6
Enabled
ON
ON
ON
OFF OFF OFF ON
DCE
4,11,20*
8
6
Disabled
OFF ON
ON
ON
OFF OFF OFF
DCE
4,11,20*
8
6
Enabled
OFF ON
ON
ON
OFF OFF ON
DCE
4
6
8
Disabled
ON
OFF OFF OFF ON
ON
OFF
DCE
4
6
8
Enabled
ON
OFF OFF OFF ON
ON
ON
DCE
4,11,20*
6
8
Disabled
OFF OFF OFF ON
ON
ON
OFF
DCE
4,11,20*
6
8
Enabled
OFF OFF OFF ON
ON
ON
ON
*Multiple input pins are “or-tied”—if any input goes low, carrier is dropped
3.4 Rear Card Configuration
The Async MP Line Driver Card comes with an interface card with DB-25/RJ-11
connectors. It supports one RS-232 connection and one 4-wire connection (the
RS-232 port is the lower port on the interface card).
Figure 3-3
illustrates the
interface Card.
