[c-nsp] Cisco 7609, LR Transceiver for Short Distance Connection

[Christopher.Marget at usc-bt.com]

>> He should actually be ok even with ER and no attenuators as minimum 
>> transmit power is -4.7 dBm and max receive power is -1 dBm (per cisco 
>> site). Just check optical power levels and see if they are in limits.

>Uhm, no.

>*Maximum* transmit power is 4 dBm and max receive is -1 dBm, so an attenuator is certainly highly recommended for short distances.



"Minimum cabling distance for -LR, -SR, -LX4, -ER modules is 2m, according to the IEEE 802.3ae standard"
http://www.cisco.com/en/US/prod/collateral/modules/ps5455/ps6574/product_data_sheet0900aecd801f92aa.html

/chris