User manual

SM User Manual January 2004
Software Release 4.1
SM Power Up Mode With No 802.3 Link
The operator specifies the default mode in which this SM will power up when the module senses no
Ethernet link. The operator selects either
• Power Up in Aim Mode—the module boots in an aiming mode. (See Table 11 on
Page 70 and Alignment Page on Page 111.) When the module senses an Ethernet
link, this field is automatically reset to Power Up in Operational Mode. When the
module senses no Ethernet link within 15 minutes after power up, the module carrier
shuts off.
• Power Up in Operational Mode—the module boots in Operational mode. The module
attempts registration. This is the default selection.
Bridge Entry Timeout
The operator specifies the appropriate bridge timeout for correct network operation with the existing
network infrastructure. Timeout occurs when the AP encounters no activity with the SM (whose
MAC address is the bridge entry) within the interval that this field specifies. The Bridge Entry
Timeout should be a longer period than the ARP (Address Resolution Protocol) cache timeout of
the router that feeds the network.
This field governs the timeout interval, even if a router in the system has a longer timeout interval.
The default value of this field is 25 minutes.
An inappropriately low Bridge Entry Timeout setting may lead to temporary loss of
communication with the other module.
Authentication Key
The operator specifies the type of encryption. This field is used only if authentication is required by
the AP:
• Use Default Key specifies the predetermined key for authentication in the BAM server.
See Bandwidth and Authentication Manager (BAM) on Page 22.
• Use This Key specifies the hexadecimal key that is permanently stored on the SM.
Frame Timing Pulse Gated
If this SM extends the sync pulse to a BH master or an AP, then the operator selects either
• Enable—If this SM loses sync from the AP, then do not propagate a sync pulse to the
BH timing master or other AP.
• Disable— If this SM loses sync from the AP, then propagate the sync pulse to the BH
timing master or other AP.
See Wiring to Extend Network Sync on Page 74.
NOTE: This setting prevents interference in the event that the SM loses sync.
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