Cabletron Systems MCC-FRIO User manual

QR-1
MCC-FRIO QUICK REFERENCE
QR.1 SETTING JUMPERS AND SWITCHES
Location of SW1/SW2 Switchblocks And Jumper P1
(Default Settings)
 Copyright 1997 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America
Order Number: 9032132-01 July, 1997
The Complete Networking Solut
ion
P1
SW1
OFF
ON
SW2
OFF
ON
SW1
OFF
ON
SW2
OFF
ON
P1
SW1 (FOT-A or RI)
SW2 (FOT-B or RO)
On – Cabletron fiber key
Off – 802.5J fiber key
On – RO or lobe (RJ45 port)
Off – RI or station (RJ45 port)
On – Autowrap enable (RJ45 port)
Off – Autowrap disable (RJ45 port)
On – Station and lobe application
Off – RI and RO application
1
2
3
4
Switch Configuration Table
(From back of card)
NOT
APPLICABLE
Note: Switch 1 on SW1 controls the RI port.
Switch 2 on SW2 controls the RO port.

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QR.1.1 SelectingThe Ring Speed
Use jumper P1 to select the MCC-FRIO ring speed, as shown in the table.
QR.1.2 SelectingThe Fiber KeyingType
The type of fiber key used depends on the device with which the port will
connect.
Ring Speed Setting Put Jumper P1 Sleeve Over
16 Mbps Pins 1 and 2 (Default setting)
4 Mbps Pins 2 and 3
NOTE
Cabletron Systems offers complete compatibility with vendor
products that comply with the “new” 802.5J standard for fiber
RI/RO ports.Therefore, the MCC-FRIO offers connectivity to
products using 802.5J or Cabletron Systems fiber keying.
Port Fiber KeyingType
Configuration SW1 Switch Settings SW2 Switch Settings
RI
Connect to a RO port that is
using Cabletron fiber keyi ng.
1– On
(Default setting) Not applicable
Connect to a RO port that is
using 802.5J fiber keying. 1– Off
RO
Connect to a RI port that is
using Cabletron fiber keying. Not applicable
1– On
(Default setting)
Connect to a RI port that is
using 802.5J fiber keying. 1– Off

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QR.2 LED FUNCTIONS
Consult the diagram to help interpret LED indications.
MCC-FRIO LEDs
PWR - Power
The PWR LED lights GREEN during normal operation, indicating the
reception of power. If the LED is off, the MCC-FRIO is not receiving
power.
16 Mb - Ring Speed
The 16 Mb LED lightsYELLOW to indicate a 16 Mbps ring speed. An
unlit LED indicates a ring speed of 4 Mbps.
P1 and P2 - Ports
The P1 and P2 LEDs indicate the status of the associated lobe port, as
described in the table below.
LED Activity Meaning
GREEN Phantom current present (port inserted).
OFF No phantom current present.
Blinking RED Speed-fault condition caused the port to
wrap.
MCC-FRIO
P1
RI
16 Mb
PWR
P
1
P
2
RO
P2
RO
RI
TX
TX
RX
RX
P1
RI16 Mb
PWR
P2
RO

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RI And RO - Ports
The RI and RO LEDs indicate the status of the RI or RO port, as
described in the table below.
LED Activity Meaning
GREEN Rx and Tx connected fiber key received
(port open and operational).
Blinking GREEN The connection from the upstream device to the Receive connection is complete but
the port is wrapped.
OFF Rx disconnected (signal loss).
Blinking RED Speed-fault condition caused the port to
wrap.