Specifications

Appendix A
93
Switch 3 settings
Use the switches 1~2 to set the DSR/DTR handshaking
Use the switches 3~4 to set the CTS/RTS handshaking
Use the switch 5 to set the ETC polarity
Use the switch 6 to set the TC polarity
Use the switch 7 to set the RC polarity
Use the switch 8 to select the port setting as DCE or DTE.
Use the switch 9~10 to set the Interface type
DIP
SW STATE Function
1 2 DSR/DTR out
p
ut Settin
g
OFF OFF Constantly ON
ON OFF Follow Local Input DTR/DSR
OFF ON Follow Remote Input DTR/DSR
1,2
ON ON NA
3 4 CTS/RTS out
p
ut Settin
g
OFF OFF Constantly ON
ON OFF Follow Local Input RTS/CTS
OFF ON Follow Remote Input RTS/CTS
3,4
ON ON NA
5 ETC Polarit
y
Settin
g
OFF Normal
5
ON Invert
6 TC Polarit
y
Settin
g
OFF Normal
6
ON Invert
7 RC Polarit
y
Settin
g
OFF Normal
7
ON Invert
8 Data Port Mode Settin
g
OFF DCE Mode
8
ON DTE Mode
9 10 Data Port Interface Settin
g
OFF OFF RS-530,RS-449,X.21
ON OFF V.35
OFF ON RS-232
9,10
ON ON NA
Switch 4 settings
Use the switches 1~2 to set the loop back type
Use the switches 3 to select either fiber or data port for loop back
Use the switch 4 to set the DCD behavior
DIP
SW STATE Function
1 2 Loo
p
Back Function Settin
g
OFF OFF OFF
ON OFF LLB
OFF ON RLB
1,2
ON ON RRLB
3 Loo
p
Back Select
OFF Fiber Side Loop Back
3
ON Data Port Side Loop Back
4 DCD Out
p
ut Settin
g
OFF Constantly ON (except when fiber LOS)
4
ON Follow Fiber Sync and remote DTE DCD