ADC PG-FLEXPLUS PLL-735, Manual

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SCP-PLL735-010-03H
PLL-735 Lists 1, 2 and 3 January 6, 2003 11
F
RONT
P
ANEL
C
RAFT
P
ORT TO
M
ODEM
C
ONNECTIONS
Using a cable that connects the Data Terminal Ready (DTR) signal will ensure automatic log off when the terminal
is unplugged. When connecting the RS-232 port to a modem, a null modem cable should be used. Ensure that the
modem’s Carrier Detect (CD) and DTR functions are enabled. This will allow the modem connection to terminate
properly when the PMU or PAU drops Data Set Ready (DSR) and the unit will log off when the modem drops
CD. The following connections are required to make the modem work correctly (see
Figure 4, “Front Panel Craft
Port to Modem Connections,” on page 11 ).
Figure 4. Front Panel Craft Port to Modem Connections
B
ACKPLANE
C
RAFT
P
ORT TO
T
ERMINAL
C
ONNECTIONS
Use a null modem cable to connect to a DTE device from the backplane connector. Figure 5, “Backplane Craft
Port to Terminal Connections Using a Null Modem Cable,” on page 11 shows the wiring for the required null
modem cable to a DB-9 and a DB-25 connector.
Figure 5. Backplane Craft Port to Terminal Connections Using a Null Modem Cable