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ADCP-50-304 • Issue 19 • June 1999 • Section 2: Functional Description
Page 2-17
© 1999, ADC Telecommunications, Inc.
10 PS RS-422/RS-232 INTERFACE CONVERTER MODULE (PSR-06)
The PatchSwitch module converts signals to provide RS-422/RS-232 compatibility for remotely
controlled PatchSwitch equipment, see Figure 2-13. Mounted in slot position 17 of the
PatchSwitch chassis, the Data Converter Module interfaces with the ADC Remote Control Unit,
CRT terminal, or computer directly, or indirectly through modems and telephone lines. The
module is a printed circuit board assembly with components, a front panel with four LED status
indicators and a rear 96-pin DIN connector. There is one eight-position programming plug
provided on the circuit board to assign the Interface Converter module as a DTE or DCE. This is
done by placing the eight position programming plug into one of two DIP Sockets labeled DTE
or DCE. There is also a two-position Berg Post to inactivate interface when Data Set Ready
(DSR) is not asserted (DTE mode only). A simple block diagram illustrating the Data Converter
connections is shown in Figure 2-14. Table 2-6 lists LED status indicators.
The functions of the Data Converter status indicators (LEDs are as follows):
RSP
(Respond) flashes when data is being transmitted from the control module.
CMD
(Command) flashes when data is being received by the control module.
SEL
(Select) turns on when any attached PatchSwitch chassis has been addressed.
CTL
(Control) turns on when a control device is on-line and ready (RTS or CTS signal).
Figure 2-13. RCU to Remote PatchSwitch Chassis
RS-422
PUBLIC
TELEPHONE
NETWORK
RS-232
REMOTE
CONTROL
UNIT
PATCHSWITCH CHASSIS 0
CM 0
SLOT 18
PS MODULE
SLOT 16
PS MODULE
SLOT 1
PSR-06A
DATA CONVERTER
SLOT 17
SLOTS
2 – 15
B
A
C
K
P
L
A
N
E
RS-422 COMMUNICATION CHANNEL
TO ADDITIONAL PS CHASSIS
RS-232
MODEM
RS-232
MODEM
NOTE:
THE PSR-06A IS REQUIRED ONLY IN ONE
SWITCH CHASSIS AT EACH REMOTE LOCATION.
THE OTHER CHASSIS ALL COMMUNICATE
USING THE RS-232 COMMUNICATION CHANNEL.
1562-A