ADCP-50-304 • Issue 19 • June 1999 • Section 2: Functional Description
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 2-6lists 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).
RS-232
REMOTE
CONTROL
UNIT RS-422RS-232
MODEM
PUBLIC
TELEPHONE
NETWORK
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.
PATCHSWITCH CHASSIS 0
| | | CM 0 |
| | | SLOT 18 |
| | | |
| B | PSR-06A |
| A | DATA CONVERTER |
| C | SLOT 17 |
| K | |
| P | PS MODULE |
| L | |
| | SLOT 16 |
| |
| A |
| |
| N | |
ESLOTS
2 – 15
PS MODULE
SLOT 1
1562-A
RS-422 COMMUNICATION CHANNEL
TO ADDITIONAL PS CHASSIS
Figure 2-13. RCU to Remote PatchSwitch Chassis
Page 2-17
© 1999, ADC Telecommunications, Inc.