GSM1010M Gigabit Converter
12
10 - DIP switches setting
.
Each GSM1010M unit is equipped with an array of 4 DIP switches that facilitate the
proper testing of the F/O ports for optimal operation.
The following operations can be implemented on each port:
•
Loop-back enable / disable
•
Link segmentation test:
LST ON
(Test mode)/
LST OFF
(Link failure notification)
UP – loop-back enable – TP port
UP – loop-back enable – F/O port
Dow n – loop-back disable -TP po rt
Dow n – loop-back disable – F/O port
UP – Test Mode -TP po rt to F/O p ort
UP – Test Mode - F/O po rt to TP p ort
Dow n- (LS T OFF) – TP po rt to F/O p ort
Dow n- (LS T OFF) – F/O po rt to TP p ort
LB = Loop-back
LST
=
Link Segmentation Test
UP
Down
Default DIP switches set-up:
S1,S2 in Down position (LB disabled)
S3,S4 in UP position ( LST ON)
TP
F/O
Port Setup
LB
LST
S1
S2 S3 S4
TP
F/O
UP – loop-back enable – TP port
UP – loop-back enable – F/O port
Dow n – loop-back disable -TP po rt
Dow n – loop-back disable – F/O port
UP – Test Mode -TP po rt to F/O p ort
UP – Test Mode - F/O po rt to TP p ort
Dow n- (LS T OFF) – TP po rt to F/O p ort
Dow n- (LS T OFF) – F/O po rt to TP p ort
LB = Loop-back
LST
=
Link Segmentation Test
UP
Down
Default DIP switches set-up:
S1,S2 in Down position (LB disabled)
S3,S4 in UP position ( LST ON)
TP
F/O
Port Setup
LB
LST
S1
S2 S3 S4
TP
F/O
LB ( loop-back )
In normal operation, the LB DIP switches are in disable mode (Down position)
When it is necessary to perform a loop-back test in the selected port, then the
Associated LB DIP switch should be enabled (UP position). The appropriate
LB LED will light to indicate that the selected GSM1010M port is in loop-back mode.
Note: before applying Power to the unit, ensure that the LB DIP switches are in
Down position (LB disabled)
LST DIP switches and LST signal commands from SNMP management station
After Power On, the GSM1010M units (see Fig-1 next page) act as Master devices
and therefore the
MA™ management is not functional.
Since the SNMP agent is operational in both GSM1010M devices, the LST DIP switches
are neutralized and similar LST commands (FO>>TP, TP>>FO) can be executed from
the SNMP management station (or via Telnet, or Terminal Emulation/CLI).
By default the LST commands are preset to LST ON mode (like the DIP switches S3 and
S4) in each GSM1010M device.
Recall that the DIP switches can be used only in case that both the SNMP and MA
management are not operational and after Power On the GSM1010M unit.
