Cisco GLC-BX40-D-I= 1000BASE-BX40-D SFP Transceiver Module, SMF 1550nm, DOM Max 40Km 
 
Product Specifications
1000BASE-BX40-D and 1000BASE-BX40-U for single-fiber bidirectional applications
The Cisco GLC-BX40-D-I, GLC-BX40-DA-I, and GLC-BX40-U-I SFPs operate on a single strand of standard SMF.
A GLC-BX40-D-I or GLC-BX40-DA-I device connects to a GLC-BX40-U-I device with a single strand of standard SMF with an operating transmission range up to 40 km.
The communication over a single strand of fiber is achieved by separating the transmission wavelength of the two devices. The GLC-BX40-D-I, GLC-BX40-DA-I, and GLC-BX40-U-I SFPs also support Digital Optical Monitoring (DOM) functions according to the industry-standard SFF-8472 Multisource Agreement (MSA). This feature gives the end user the ability to monitor real-time parameters of the SFP, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage.
 
1000BASE-BX80-D and 1000BASE-BX80-U for single-fiber bidirectional applications
The Cisco GLC-BX80-D-I and GLC-BX80-U-I SFPs operate on a single strand of standard SMF.
A GLC-BX80-D-I device is always connected to a GLC-BX80-U-I device with a single strand of standard SMF with an operating transmission range up to 80 km.
The communication over a single strand of fiber is achieved by separating the transmission wavelength of the two devices. The GLC-BX80-D-I and GLC-BX80-U-I SFPs also support Digital Optical Monitoring (DOM) functions according to the industry-standard SFF-8472 Multisource Agreement (MSA). This feature gives the end user the ability to monitor real-time parameters of the SFP, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage.
 
 
Optical specifications
Table 2 specifies the optical parameters for the SFPs. Both receiver power and channel insertion loss specifications must be met for guaranteed operation.
 
Table 2. Main optical parameters
Product
Transmit Power Range (dBm)
Receive Power Range (dBm)
Maximum Channel insertion loss in dB (by fiber type)*
Transmit and Receive Wavelength Range (nm)
GLC-BX40-D-I
-5 to +3
-25 to +3
19 (G.652 SMF)
1540 to 1560 (Transmit)
1260 to 1360 (Receive)
GLC-BX40-DA-I
-5 to +3
-25 to +3
19 (G.652 SMF)
1480 to 1500 (Transmit)
1260 to 1360 (Receive)
GLC-BX40-U-I
-5 to +3
-25 to +3
19 (G.652 SMF)
1260 to 1360 (Transmit)
1480 to 1600 (Receive)
GLC-BX80-D-I
-2 to +3
-27 to +3
23 (G.652 SMF)
1560 to 1580 (Transmit)
1470 to 1510 (Receive)
GLC-BX80-U-I
-2 to +3
-27 to +3
23 (G.652 SMF)
1480 to 1500 (Transmit)
1550 to 1620 (Receive)
* Maximum channel insertion loss is defined for maximum distance guaranteed as specified in Table 1 and by fiber type. When links are deployed over shorter distances, additional channel insertion loss may be allowed.
 
Product specifications
 
Data Sheet Pdf