Connect Tech CTIM-00044 user manual Loopback Connectors

Connect Tech Blue Heat/Net Sync User Manual

Loopback Connectors

Loopback connectors are useful for performing diagnostics. The following figure illustrates the recommended pinouts for creating loopback connectors for Blue Heat/Net Sync.

DB-25 Male

2 - TX

3 - RX

4 - RTS

5 - CTS

6 -DSR

8 - DCD

20 - DTR

22 - RI

15 - TXC

17 - RXC

Figure 7: Recommended Pinouts for V.28 (RS-232) Loopback Connector

DB-25 Male

2 - TX-

14 - TX+

16 - RX+

3 - RX-

9 - RXC+

17 - RXC-

11 - TXC+

12 - TXC-

7 - SR

Figure 8: Recommended Pinouts for a V.11 (RS422) Loopback Connector

NOTES:

1.For an asynchronous loopback, omit the TXC and RXC pin.

2.When using clock signals, one signal must be configured as an input, while the other must be configured as an output.

3.When using a DB-25 female loopback connector, solder cup DB-25 connectors and 24 AWG solid core wire, such as wire from a CAT5 cable is recommended.

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