Nortel Networks 1000BASE-SX, 1000ASE-XD manual Physical dimensions, Performance specifications

180 Appendix A Technical specifications

Table 45 Electrical parameters (continued)

Parameter	Electrical specification
Input current	1 A @ 100 VAC
	0.5 A @ 240 VAC
Maximum thermal	250 BTU/hr
output

Physical dimensions

Table 46 lists physical dimensions for the BayStack 420 Switch.

Table 46	Physical dimensions
Parameter		Specifications
Height		1.75 in (4.5 cm)
Width		17.125 in (43.5 cm)
Depth		8.0 in (20.32 cm)
Weight		6.2 lb (2.82 kg)

Performance specifications

Table 47 lists performance specifications for the BayStack 420 Switch.

Table 47 Performance specifications

Parameter	Specifications
Frame Forward Rate	Up to 3.2 million packets per second (pps) maximum,
(64-byte packets)	learned unicast traffic; 5.1 million packets per second (pps)
	in a stack configuration
Port Forwarding/Filtering	• For 10 Mb/s: 14,880 pps maximum
Performance	• For 100 Mb/s: 148,810 pps maximum
(64-byte packets)
Address Database Size	8,000 entries at line rate
Addressing	48-bit MAC address
Frame Length	64 to 1518 bytes (IEEE 802.1Q Untagged)
	68 to 1522 bytes (IEEE 802.1Q Tagged)

209418-A