The AMC13 requires at least one SFP in the bottom site (for TTC) and typically 1-3 different type SFP in the upper 3 sites for DAQ. See sketch below.

The TTC SFP for all new AMC13 should be the 400Mb/s capable type (JDSU or Finisar below). The CMS TCDS protocol now used requires 400Mb/s for the return data sent by the AMC13.

The DAQ SFP currently (as of LHC Run 2 in 2015) run at 5.0Gb/s, but we plan to upgrade to 10Gb/s soon so ideally all AMC13 should have 10Gb/s capable SFP installed.

For the g-2 experiment, 10Gb/s is required. Confused? Me, too!

10Gb/s DAQ

• AFBR-703SDZ from Avago ($120). EOL as of 2/2014
• AFBR-709SMZ is a replacement, same price

5Gb/s DAQ

• 57D9AMZ from Avago (CMS CDAQ, only works to 8.2 Gb/s)
• HP AJ716A 8Gb Fibre Channel SFP+ transceiver. We bought a couple from serversupply.com ($85 each or so).

These are 850nm MMF Duplex LC connector type.

160/400Mb/s TCDS

After LS1 CMS will replace TTC hardware with TDCS. This will use TTC protocol for downstream compatible with existing system, but new 400MB/s 8b10b protocol for upstream. Either of the following two may be used.

Manufacturer	Part No	Price/Availability	Speed	Notes
JDSU	JSH-12L1DD1	USD 38 / 4 weeks		Recommended by Jan Troska
Finisar	FTLF1318P3BTL	USD 65 / Stock	Gigabit Ethernet up to 1.25Gb/s

160Mb/s TTC

These are obsolete and should only be used for lab testing or loop-back.

For the TTC receiver, we use an SFP 155-Mbps 1300nm transceiver. Suppliers:

• LFP105 from blackbox.com ($70 each) – Discontinued as of June 2012
• HFBR-57E0LZ from Avago (Digi-Key has them).

Cables are 62.5u multimode ST-LC type

We have shipped several AMC13 with the Black Box ST/LC cable (3m) P/N: EFN110-003M-STLC.

NOTE: these are all obsolete with the commissioning of the TCDS system

SFP Inventory

Part Number	Description	Number	Location	Notes
HFBR 57E0LZ	TTC	15	In g-2 lab	tested

-- EricHazen - 10 Jan 2012