Cisco Cisco DWDM Transceiver Modules 数据表

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Table 1 provides cabling specifications for the Cisco X2 modules.

Table 1.

X2 Port Cabling Specifications

Cisco X2

Wavelength (nm)

Cable Type

Core Size (Microns)

Modal Bandwidth
(MHz*km)

Cable Distance

Cisco X2-10GB-CX4

CX4 (copper)

15m

Cisco X2-10GB-T

CAT6A/CAT7
(copper)

100m

Cisco X2-10GB-SR

850

MMF

62.5

50.0

160 (FDDI-grade)

200 (OM1)

400

500 (OM2)

2000 (OM3)

4700 (OM4)

26m

33m

66m

82m

300m

400m

Cisco X2-10GB-LRM

1310

MMF

62.5

50.0

500

400

500

220m

100m

220m

SMF

G.652

300m

Cisco X2-10GB-LX4

1310

MMF

62.5

50.0

500

400

500

300m

240m

300m

Cisco X2-10GB-LR

1310

SMF

G.652

10 km

Cisco X2-10GB-ER

1550

SMF

G.652

40 km

***

Minimum cabling distance for -LR, -SR, -LX4, -ER modules is 2m, according to the IEEE 802.3ae standard, and minimum

cabling distance for -LRM modules is 0.5m, according to IEEE 802.3aq standard.

Requires 5 dB 1550 nm fixed loss attenuator for < 20 km. Attenuator is available as a spare. The part number is WS-X6K-5DB-

ATT=.

***

Links longer than 30 km are considered engineered links.

Standards

●

IEEE 802.3ae (-LR, -SR, -LX4, -ER)

●

IEEE 802.3ak (-CX4)

●

IEEE 802.3aq (-LRM)

●

IEEE 802.3an (-T)

Table 2 shows the main optical characteristics for the Cisco X2 module. The Cisco X2-10GB-CX4 and X2-10GB-T

are not optical modules and therefore are not listed in Table 2.

Table 2.

Optical Transmit and Receive Specifications

Product

Type

Transmit Power (dBm)

Receive Power (dBm)

Transmit and Receive
Wavelength Range (nm)

Maximum

Minimum

Maximum

Minimum

Transmit

Receive

Cisco X2-10GB-SR

10GBASE-SR 850 nm
MMF

-1

-7.3

-1.0

-9.9

840 to 860

Cisco X2-10GB-LRM

10GBASE-LRM 1310
nm MMF and SMF

0.5

-6.5

0.5

-8.4 (in
average)

and -6.5 (in
OMA)

***

1260 to 1355

Cisco X2-10GB-LX4

10GBASE-LX4 WWDM
1300 nm MMF

-0.5 per lane

-6.75 per
lane in OMA

-0.5 per lane -14.25 per

lane in OMA

Four lanes; overall range:
1269 to 1356