Cisco Cisco DWDM Transceiver Modules 安装指南

XENPAK-10GB-LX4

1310

MMF

62.5
50.0
50.0

500
400
500

300 m (984.3 ft)
240 m (787.4 ft)
300 m (984.3 ft)

XENPAK-10GB-CX4

—

CX4 (copper)

—

—

15 m (49.2 ft)

XENPAK-10GB-LRM

1310

MMF

62.5
50.0
50.0

500
400
500

220 m (722 feet)
100 m (328 feet)
220 m (722 feet) 

1.

Minimum cabling distance for optical XENPAK 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.

Links longer than 30 km are considered engineered links; meaning that 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 (11 dB) must be used to avoid overloading and damaging the receiver.

XENPAK-10GB-SR

10GBASE-SR, 850 nm 
MMF

–1.0 (Max)

–7.3 (Min)

–1.2 (Max)

–9.9 (Min)

840 to 860

XENPAK-10GB-LR 
XENPAK-10GB-LR+

10GBASE-LR 1310 nm 
SMF

+0.5 (Max)

–8.2 (Min)

+0.5 (Max)

–14.4 (Min)

1260 to 1355

XENPAK-10GB-LW

10GBASE-LR 1310 nm 
SMF

+0.5 (Max)

–8.2 (Min)

+0.5 (Max)

–14.4 (Min)

1260 to 1355

XENPAK-10GB-ER
XENPAK-10GB-ER+

10GBASE-ER 1550 nm 
SMF

+4 (Max)

–4.7 (Min)

–1.0 (Max)

–15.8 (Min)

1530 to 1565

XENPAK-10GB-ZR

10GBASE-ZR 1550 nm 
SMF

+4 (Max)

0 (Min)

–7 (Max)

–24 (Min)

1530 to 1565

XENPAK-10GB-LX4

10GBASE-LX4 WWDM 
1300 nm MMF

–0.5 per lane (Max)

-6.75 per lane in 
OMA (Min) 

–0.5 (Max)

–14.25 per lane 
in OMA

1

 (Min)

1.

Optical Modulation Amplitude (OMA) sensitivity

Four lanes; overall 
range: 1269 to 1356

XENPAK-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