Atec Fluke-OF-500 - Manual (Page 128)

OF-500 OptiFiber Certifying OTDR
Users Manual
118
Serial Interfaces
The tester has a USB client interface and an EIA/TIA-232
(RS-232; DB9) interface for uploading test results to a PC
and updating the tester’s software.
The RS-232 serial port connects to a PC with a null-modem
cable. Tables 5 and 6 and show the pin connections for
the cable and the 9-to-25-pin adapter available from
Fluke Networks.
Table 5. RS-232 Interface Cable Connections
Tester End (female DB9) PC End (female DB9)
Signal Name Pin Direction Pin Signal Name
Data carrier detect 1
←
4 Data terminal ready
Receive data 2
←
3 Transmit data
Transmit data 3
→
2 Receive data
Data terminal ready 4
→
1 Data carrier detect
Signal ground 5
←→
5 Signal ground
Not connected 6 6 Not connected
Request to send 7
→
8 Clear to send
Clear to send 8
←
7 Request to send
Not connected 9 9 Not connected