LBI-39055
8
RS422x-x board configuration is:
Address Switches A3-A9
All On
(RS422AT-P)
Address Switches A3-A9
All Off
(RS422I-P)
Interrupt Jumper
IN4
LD GND Jumper
In
LD Jumper
In
DX Jumper
In
SX Jumper
Out
HDX Jumper
Out
FDX Jumper
In
SLOT 8 Jumper
Out
(RS422AT-P)
-BIAS and +BIAS
Out
(RS422I-P)
Configuration for the 3PXOCC1A board is:
Address Switches (S1)
All Off
Interrupt Jumper
IRQ4
Jumpers JP12
−
JP15
Upper Position
Jumpers JP16
−
JP17
Lower Position
If any other RS-422 plug-in serial board is used the
following board configuration must be used:
COM Port
COM1
Port Address
3F8
Interrupt
IRQ4
See Figure 8A or the manufacturer's documentation for
COM port connector pin-out details. Interconnect the
control data connections between the PC and the
appropriate CEC/IMC Data Concentrator Card as required.
Shielded pairs are recommended.
Remote Console Interconnections Via A 4-Wire Modem
When the C3 Maestro is installed at a remote location
from the CEC/IMC, serial control data must be routed via
RS-232 connections and 4-wire modems. Since the C3
Maestro requires a dedicated or continuous serial link (non-
dial-up), a 4-wire leased line (or equivalent) meeting 3002
data grade specifications must be employed between the
CEC/IMC and the C3 Maestro in a remote console
installation.
Figure 8B shows typical control data interconnections
for a remote console installation using RS-232 connections
and full-duplex 4-wire modems. At the CEC/IMC Data
Concentrator Card, RS-232 connections are made at J13,
not J12. Observe all notes listed in the figure if wiring an
installation of this type. Recommended modem settings
are:
•
•
Modem Options
DCE Rate = 9600
Originate/Answer = Originate (CEC/IMC modem)
Originate/Answer = Answer (C3 Maestro modem)
V.32 Fast Train = Enabled
Auto Retrain = Enabled
Internal/External Clock = Internal
Dial-Up/Leased Line = Leased
2-Wire/4-Wire = 4 Wire
TX Level = (as required; use -15 dBm if line loss is 0 dB)
Dial Backup = Manual
Loop Back Time = 15 minutes
Dial Line = RJ11
Line Current Disconnect = Long
Long Space Disconnect = Enabled
V.22 Guard Tone = Disabled
•
•
MNP Options
MNP Protocol = Enabled
Auto Fallback = Enabled (or Normal)
Flow Control = CTS Only
XON/XOFF Pass Through = Enabled
Data Compression = Disabled
Inactivity Timer = Off
Break Control = 5
•
•
DTE Options
Synchronous/Asynchronous Data = Asynchronous
DTE Rate = 9600
Character Length = 8 Bits
Parity = None
Commanded Dialer = Asynchronous
AT Command Set = Disabled
DTR Control = Disabled
DSR = Forced High
DCD = Normal
CTS = Forced High
DTE Fallback = Disabled
Options = Retained At Disconnect
