User manual

Appendix A
49
Fiber Media Connection (SC Type
Status LEDs
Data port connection
Configuration DIP switch
A.4 FRM220-Serial In-band Managed Datacom Fiber Media Converter (to be announced)
The FRM-Serial is a serial fiber media converter that supports RS-232, RS-485 and RS-423 conversion to fiber
media. Other features include the ability to remove interface termination (go high-impedance), run in TTL interface
mode, and the ability to supply external +5VDC to the auxiliary equipment.
The FRM-Serial uses a 6 pin, in-line, terminal block with removable header. Wires may be easily terminated at
the header's screw posts without soldering. The front panel has a 4 position DIP switch for setting the interface
type and termination. When the FRM-Serial is placed in the FRM220 with SNMP, the settings are controlled by the
chassis management system and any DIP settings are ignored. Additionally, when placed in the managed rack, the
remotely linked FIB1-Serial unit is also controlled and configured through the in-band management system.
Figure A-? FRM-Serial Media Converter Card
The configuration DIP switch, located on the face of the converter, provides setting for interface selection.
When placed in a managed rack, the DIP settings are ignored and the unit must be configured via the local control
console, GUI application or via SNMP set/get commands.
The 6 pin interface connector has pin assignments displayed in the table below. Pin 1 provides a +5V
connection that may be used for logic or to power a small interface converter. Pin 6 provides a common for all the
signals. DIP Switch 4 when ON provides normal interface termination. When off, the circuit presents a high
impedance to other connected equipment.
Pin assignment and DIP setting for FIB1-Serial
Pin Definition DIP SW
2 3 4 5
I/F
Type
1 2 3
NC NC + - 485-2W ON OFF OFF
DO+ DO- DI+ DI- 485-4W OFF OFF OFF
NC DO NC DI 232-3W ON ON OFF
FI DO FO DI 232-5W OFF ON OFF
NC DO NC DI 423-3W ON OFF ON
FI DO FO DI 423-5W OFF OFF ON
NC DO NC DI TTL-
3W
OFF ON ON
Legend: NC=No Connection, FI=Flow Control In, FO=Flow Control Out, DI=Data IN, DO=Data Out