Allied Telesis AT-DC2552XS manual Installing QSFP+ Transceivers and Cables, 40GBASE-SR4, At-Qsfpsr

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Installing QSFP+ Transceivers and Cables

Review the following guidelines before installing optional QSFP+ transceivers in the switch:

QSFP+ transceivers can be hot-swapped while the switch is powered on. However, you should always disconnect the fiber optic cables first before removing a module.

You should install the module before connecting the fiber optic cable.

Unnecessary removal and insertion of a module can lead to premature failure.

Go to “Optional QSFP+ Transceivers” on page 18 for a list of approved QSFP+ transceivers for the AT-DC2552XS.

Allied Telesis recommends using the following SFP+ cables listed in Table 10:

Table 10. QSFP+ Cables

Port	Cable Used	Max Transmission Distance
		26m (At 400MHz - km transmission band)
40GBASE-SR4	GI 50/125 multimode fiber	30m (At 500MHz - km transmission band)
AT-QSFPSR	(In accordance with ITU-T	100m (At 2000MHz - km transmission band)
	G.651)
		150m (At 4700MHz - km transmission band)
ET3-MTP 12-1	MTHTP cable for AT-QSFPSR	1m
	GI 50/125 multimode fiber
ET3-MTP 12-5		5m
	(In accordance with ITU-T
	G.651)

Installing a

QSFP+

Transceiver

Perform the following procedure to install an QSFP+ transceiver:

1.Remove the module from its shipping container and store the packaging material in a safe location.

2.Remove the dust cover from the chassis QSFP+ slot. See Figure 31 on page 62.

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