TRE/TR Evaluation Kit
Evaluation Kit Application Notes

The TRE/TR Evaluation Kit provides an easy connection to any of Javad GNSS OEM boards. It is designed for use in laboratories and allows:

The kit consists of:

The TRE Interface Adapter is supposed to be used with TRE series of OEM boards. The TRE series currently consists of the TRE-G2T, TRE-G3T, TRE-G3TAJ, Duo-G2, Duo-G2D and Quattro-G3D receivers. The TRE Interface Adapter brings all the interface signals combined at 64-pin DIN41612 Euro connector out to the standard connectors for each interface type. Below is a short description of all the connectors (both standard and non-standard) located on the TRE Interface Adapter.

The J101 is a 64-pin DIN41612 Euro connector to be plugged into the interface connector of the tested OEM board.

The J116 "USB" connector is a standard USB type B receptacle. A standard USB cable (not included in the kit) can be used to connect to a TRE-XXX receiver via J116.

The J107 "SERIAL A", J113 "SERIAL B" and J117 "SERIAL C" are standard DB-9 Male connectors for three RS232 ports. Table 1 shows pin out description for the three connectors. A standard null-modem cable (not included in the kit) can be used to connect a PC to a TRE-XXX receiver via one of these connectors.

Table 1. Pin out for J107 "SERIAL A", J113 "SERIAL B" and J117 "SERIAL C"
Pin # Signal Name Direction Description
1 - -  
2 RXD In Receive Data
3 TXD Out Transmit Data
4 - -  
5 GND - Ground
6 - -  
7 RTS Out Request to Send
8 CTS In Clear to Send
9 - -  

The J125 "PWR" is a 4-pin header for input power. The 4-Pin Header to Banana Plugs Power Cable #14-508021-01 is supposed to be used to power a TRE-XXX receiver via this connector. Reverse Polarity Protection is provided for input power voltage at this connector.

The J105 "CAN A" and J111 "CAN B" are DB-9 Male connectors for two CAN interfaces. Table 2 shows their pin out description. Two 2-pin headers control optional 120-Ohm termination resistors for the two CAN buses: J126 for CAN A and J127 for CAN B. To terminate CAN A with a 120 Ohm resistor at J105, install a jumper at J126. To terminate CAN B with a 120 Ohm resistor at J111, install a jumper at J127. The factory default is no termination (no jumpers).

Table 2. Pin out for J105 "CAN A" and J111 "CAN B"
Pin # Signal Name Direction Description
1 - -  
2 CANL In/Out CAN Low
3 GND - Ground
4 - -  
5 - -  
6 - -  
7 CANH In/Out CAN High
8 - -  
9 - -  

The J122 "RS-422" is a DB-9 Male connector for RS-422 interface. Table 3 shows its pin out description.

Table 3. Pin out for J122 "RS-422"
Pin # Signal Name Direction Description
1 GND - Ground
2 - -  
3 GND - Ground
4 TXD+ Out Transmit A (Non-Inverted)
5 TXD- Out Transmit B (Inverted)
6 - -  
7 - -  
8 RXD+ In Receive A (Non-Inverted)
9 RXD- In Receive B (Inverted)

The J119 "ETHERNET" is a standard RJ45 Female connector for 10/100BASE-T Ethernet. Table 4 shows its pin out description.

Table 4. Pin out for J119 "ETHERNET"
Pin # Signal Name Direction Description
1 LAN_TX+ Out Transmit Data+
2 LAN_TX- Out Transmit Data-
3 LAN_RX+ In Receive Data+
4 - -  
5 - -  
6 - -  
7 LAN_RX- In Receive Data-
8 - -  
9 - -  

The J103 is a 2x5 header (Samtec #TST-105-01-G-D-ND) for discrete timing signals. Table 5 shows its pin out description.

Table 5. Pin out for J103
Pin # Signal Name Direction Description
1 1PPSA Out 1 Pulse Per Second output A
2 GND - Ground
3 EVENTA In Event imput A
4 GND - Ground
5 1PPSB Out 1 Pulse Per Second output B
6 GND - Ground
7 EVENTB In Event imput B
8 GND - Ground
9 IRIG_OUT Out IRIG port output line
10 GND - Ground

The J104 "GPIO" is a 2x5 header (Samtec #TST-105-01-G-D-ND) for configurable GPIO signals. Table 6 shows its pin out description.

Table 6. Pin out for J104 "GPIO"
Pin # Signal Name Direction Description
1 GPIO0 Out Configurable Logic-Level I/O 0 line
2 GND - Ground
3 GPIO1 In Configurable Logic-Level I/O 1 line
4 GND - Ground
5 GPIO2 Out Configurable Logic-Level I/O 2 line
6 GND - Ground
7 GPIO3 In Configurable Logic-Level I/O 3 line
8 GND - Ground
9 - -  
10 GND - Ground

The TRE Interface Adapter also contains the following controls:

The TR-G3T Cross Adapter is supposed to be used in combination with the TRE Interface Adapter for TR series of OEM boards. The TR series currently consists of the TR-G2, TR-G3, TR-G2T and TR-G3T receivers. The TR-G3T Cross Adapter essentially converts a small 40-pin interface connector of the TR-XXX OEM boards to a standard 64-pin Euro connector of the TRE-XXX OEM boards.