Technical data

Port speed (Gbps) Cable size
(microns)
Short wavelength
(SWL)
Long wavelength
(LWL)
Extended long
wavelength (ELWL)
62.5 150 m (492 ft) N/A N/A
9 N/A 10 km (6.2 miles) 80 km (50 miles)
4 50 150 m (492 ft) (OM2)
380 m (1,246 ft)
(OM3)
N/A N/A
62.5 70 m (230 ft) N/A N/A
9 N/A 10 km (6.2 miles) N/A
8 50 50 m (164 ft) (OM2)
150 m (492 ft) (OM3)
N/A N/A
62.5 21 m (69 ft) N/A N/A
9 N/A 10 km (6.2 miles) N/A
16 50 N/A N/A N/A
62.5 21 m (69 ft) N/A N/A
9 N/A 10 km (6.2 miles) N/A
Serial port specifications (pinout RJ-45)
Pin Signal Description
1 Not supported NA
2 Not supported NA
3 UART1_TXD Transmit data
4 GND Logic ground
5 GND Logic ground
6 UART1_RXD Receive data
7 Not supported NA
8 Not supported NA
Brocade 7840 Technical Specifications
Brocade 7840 Extension Switch Hardware Reference Manual 51
53-1003127-02