RAD DATA COMMUNICATIONS FCD-2 (RS-530) Card Type E1 LTU Chip Set Unidentified I/O Options AC power connector, RS-530 DTE port, serial port, E1 network interface via 15-pin connector, BNC connectors (2) E1 Transfer Rate 2.048Mbps E1 Protocol HDB3 Frame Type CRC-4 Data Bus External [Image] CONNECTIONS Function Label Function Label AC power connector CN1 LTU board connector J3 Serial port CN2 LTU board connector J4 25-pin V.35 DTE port CN3 Power switch SW2 15-pin E1 port CN4 BNC connector - RX receive LTU board connector J2 BNC connector - TX transmit Note: Jumpers must be installed on pins 1&2 and 3&4 of connectors J3 & J4 to maintain signal path continuity when the LTU board is removed. USER CONFIGURABLE SETTINGS Setting Label Position » Debug self test mode disabled JP2 Pins 1 & 2 closed Debug self test mode enabled JP2 Pins 2 & 3 closed » Default password enabled. JP3 Pins 2 & 3 Password=FCD-12 closed User password enabled JP3 Pins 1 & 2 closed » Watchdog timer enabled JP4 Pins 1 & 2 closed Watchdog timer disabled JP4 Pins 2 & 3 closed » Signal ground is connected to the JP12 Pins 2 & 3 frame ground closed Signal ground is not connected to JP12 Pins 1 & 2 the frame ground closed » Internal -5V enabled JP22 Pins 1 & 2 closed Grounded to pin 15 in the main link JP22 Pins 2 & 3 connector (CN4) closed » Transmit side ground reference set JP23 Open for balanced interface Transmit side ground reference set JP23 Closed for unbalanced interface » Frame ground is connected to main JP24 Closed link ground reference Frame ground is not connected to JP24 Open main link ground reference » Allows connection of the line JP25 Closed controlled by JP22 to pin 15 of main link connector (CN4) for powering external device Does not allow connection of the JP25 Open line controlled by JP22 to pin 15 of main link connector (CN4) for powering external device » Allows connection of internal +5V, JP26 Closed via resistor, to pin 14 of main link connector (CN4) for powering external device Does not allow connection of JP26 Open internal +5V, via resistor, to pin 14 of main link connector (CN4) for powering external device » Receive side ground reference set JP27 Open for balanced interface Receive side ground reference set JP27 Closed for unbalanced interface TERMINATION Function JP18 JP19 JP20 JP21 » Balanced interface Pins 1 Pins 1 Pins 1 Pins 1 & compatibility enabled & 2 & 2 & 2 2 Unbalanced interface Pins 2 Pins 2 Pins 2 Pins 2 & compatibility enabled & 3 & 3 & 3 3 Note: Pins designated are in the closed position DIAGNOSTIC LED(S) LED Color Status Condition RTS Unidentified On Control input line in RS-530 DTE port is high RTS Unidentified Off Control input line in RS-530 DTE port is low DCD Unidentified On Indication output line in RS-530 DTE port is high DCD Unidentified Off Indication output line in RS-530 DTE port is low TD Unidentified On Device is detecting pulses from the local DTE TD Unidentified Off Device is not detecting pulses from the local DTE RD Unidentified On Device is receiving pulses from network RD Unidentified Off Device is not receiving pulses from network LOC Unidentified On Local synchronization lost LOC Unidentified Off Local synchronization OK REM Unidentified On Remote synchronization lost REM Unidentified Off Remote synchronization OK TUnidentified On Device loopback test active TST Unidentified Off device loopback test not running [Image] LTU BOARD CONNECTIONS Function Label Function Label Mainboard connector J5 Mainboard connector J7 Mainboard connector J6 USER CONFIGURABLE SETTINGS Setting Label Position » Factory configured - do not alter JP5 Open » Factory configured - do not alter JP6 Open E1 OUTPUT LEVEL SELECTIO Net build Label Position » 0dB SW1 1 -7.5dB SW1 2 -15dB SW1 3