Reliant Octel 200 and Octel 300 Message Servers PB6001401 Bedienungsanleitung Seite 135

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Installation
4-17
Octel Overture 200/300 Serenade 3.0
PB60014–01
Table 4-4
DCE Pinouts for Cable Connections Between the RS-232C
T
erminal and the Octel Overture 200/300
Pin EIA/CKT Signal Function
1
2
3
4
5
7
8
20
AA
BA
BB
CA
CB
AB
CF
CD
Protective
ground
T
ransmit data (TX)
Receive data (RX)
Request to send (R
TS)
Clear to send (CTS)
Signal ground
Receive-line signal detector (DCD)
Data terminal ready (DTR)
Figure 4-6
First and Second RS-232C Serial-Port Cable Pinouts
for Connection to T
erminal Equipment (DTE)
1
2
3
4
5
7
8
20
1 Protection Ground
2TX
3RX
4RTS
5 CTS
7 Signal Ground
8 DCD
20 DTR
Octel Overture
200/300 (DCE)
To Terminal (DTE)
For correct operation, DTR (pin 20) must be asserted TRUE by the terminal. R
TS (pin 4) must be exerted
TRUE by the terminal when the terminal is able to accept data, or pin 4 must be left open.
If the terminal/teleprinter equipment has
pins 1 and 7
connected together
,
intermittent pr
oblems
with
the Octel Overture 200/300 might occur
. T
erminal/teleprinters requiring Data Set Ready (DSR) could
require that pins 6 and 8 be connected together
, or pins 8 and 20 connected together at the terminal end of
the RS-232C cable. If you have a problem with or question about your terminal/teleprinter
, call Octel
technical support.
Connections
Between an External Modem and the Octel Overture
200/300
You
can use an external modem if a dedicated modem connection is required or if a modem with a baud
rate dif
ferent from the Octel Overture 200/300 internal modem is required. Y
ou can use a modem that
supports standard baud rates (300 to 9600 baud) connected to the system-terminal port. T
able 4-5 lists the
pinouts for an external modem connection. Figure 4-7 is a diagram of external modem pinouts.
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