Cisco Cisco DWDM Transceiver Modules 安装指南

DWDM-X2-xx.xx

See

SMF

G.652 fiber

—

80 km (49.72 miles) 

4

X2-10GB-T

—

CAT6A/
CAT7 
(copper)

—

—

100 m (328 feet)

1.

Minimum cabling distance for optical X2 transceivers is 2 meters according to the IEEE 802.3ae standard. 

2.

Requires a 5-dB 1550-nm, fixed-loss attenuator for distances less than 20 km.

3.

For distances up to 30 km, no special link design rules need to be considered. Link distances beyond 30 km require that you 
verify the cable characteristics, especially the cable's loss value. 

4.

When shorter distances of SMF are used, an inline optical attenuator (10 dB) must be used to avoid overloading and damaging 
the receiver. 

X2-10GB-SR

10GBASE-SR, 
850-nm MMF

–1.2 (Max)
–7.3 (Min)

–1.0 (Max)
–9.9 (Min)

840 to 860

X2-10GB-LR

10GBASE-LR, 
1310-nm SMF

0.5 (Max)
–8.2 (Min)

0.5 (Max)
–14.4 (Min)

1260 to 1355

X2-10GB-ER

10GBASE-ER, 
1550-nm SMF

4.0 (Max)
–4.7 (Min)

–1.0 (Max)
–15.8 (Min)

1530 to 1565

X2-10GB-ZR

10GBASE-ZR, 
1550-nm SMF

4.0 (Max)

0 (Min)

–7.0 (Max)

–24.0 (Min)

1530 to1565

X2-10GB-LX4

10GBASE-LX4 
WWDM 1300-nm 
MMF

– 0.5 per lane 
(Max)

–6.75 per lane 
in OMA (Min)

–0.5 per lane 
(Max)

–14.25 per 
lane in OMA 
(Min)

Four lanes; 
overall range: 
1269 to 1356

X2-10GB-LRM

10GBASE-LR, 
1310-nm MMF

0.5 (Max)

–6.5 (Min)

0.5 (Max)

–8.4 (Min 
average) and 
–6.4 (Min in 
OMA)

1260 to 1355