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CITYLIGHT 10/100 ETHERNET TRANSCEIVER CARD
2)
Configure the attached switches to fixed-rate full-duplex for the required
speed. If the attached switches/ports only support "auto" mode, the
CityLIGHT 10/100 Ethernet Transceiver can auto-negotiate with these
ports to allow full-duplex operation. Setting switch 2 ON enables auto-
negotiation. With switch 2 set to ON, switch 1 has no effect.
NOTE: Auto-negotiation does not take place across the fiber link. The local
user/copper ports negotiate independently. Consequently the ports at
both ends of the link must support the same highest common mode. i.e.
one end must not negotiate a 100 Mbps link if the far end can only
negotiate a 10 Mbps link.
3)
If an SNMP card is present in either of the chassis on the link, both
Local/Remote switches should be set to Remote i.e. both cards must
have switch 3 ON (this is the default setting).
NOTE: If no SNMP card is present in either of the chassis, one card MUST be
set to Local and the other to Remote, (setting the card to Local allows the
link connection to operate correctly; when present, the SNMP card
controls this automatically). With no SNMP card in either chassis, one
card must have switch 3 set to OFF (Local) and the other far-end device
set to ON (Remote).
4)
If link loss forwarding is required, set switch 4 to ON. (In this mode
failures on the fiber link cause the copper (user) link to be dropped).
If the state of the fiber link is not to affect the copper link then switch 4
must be set to OFF. In this mode each of the fiber and copper links
establish themselves independently. This is the default setting.
5)
Position the first CityLIGHT 10/100 Ethernet Transceiver at the required
slot in the CityLIGHT management chassis.
6)
Push the CityLIGHT 10/100 Ethernet Transceiver along the card guides
into the slot until it engages with the connector inside the CityLIGHT
chassis. Repeat at the remote location.
7)
Tighten the two captive screws on the front panels of both CityLIGHT
10/100 Ethernet Transceivers to secure them in position.
8)
Make sure on both CityLIGHT 10/100 Ethernet Transceivers that the
100 LED illuminates to indicate that power is available and that it is the
correct color, (yellow for 10 Mbps or green for 100 Mbps). Also note that
the Alarm LED illuminates.
18
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