GE-20 IOA

IOA label	ES2-S3 GE-20 IOA
Number of IOA ports	20
Software release	First supported: 9.0.0
Description	92 W maximum Full-height module See Module and Slot Combinations for more information on combining IOAs in a slot. Uses a range of small form-factor pluggable (SFP) transceivers to support different modes and cable lengths Uses either optical or copper SFPs. The optical transceivers are 1000Base-SX, 1000Base-LX, and 1000Base-ZX compliant. The copper transceivers are 1000Base-T compliant and require a ferrite core to be attached around the Ethernet cable. Note that a ferrite bead is not required for a Finisar transceiver (FCLF8522P2BTL–J1). Single-strand SFPs can be used. These SFPs work in pairs and require a matching SFP at the opposite end of the Ethernet connection. For example, an SFP rated at TX 1310, RX 1550 must be paired with an SFP rated TX 1550, RX 1310 with the same maximum operating range. See the following corresponding table (Single-strand SFPs Pairing) for more information. In a 100 Gbps fabric configuration, the E320 router can accommodate up to 2 combinations of ES2 10G LMs and ES2-S3 GE-20 IOAs. You must install a combination in either of the turbo slots (slot 2 or slot 4). The 100 Gbps allocates 10 Gbps of overall bandwidth to each of these slots. In a 120 Gbps fabric configuration, the E120 router can accommodate up to 6 combinations of ES2 10G LMs and ES2-S3 GE-20 IOAs. You can install a combination in any of the line module slots, each of which are allocated 10 Gbps of overall bandwidth. In a 320 Gbps fabric configuration, the E320 router can accommodate up to 12 combinations of ES2 10G LMs and ES2-S3 GE-20 IOAs. You can install a combination in any of the line module slots, each of which are allocated 10 Gbps of overall bandwidth.
Capability	Ethernet (IEEE 802.3x) 1000Base-SX/LX/ZX
Software features	See Ethernet IOAs for information about the layer 2 and layer 3 protocols and applications that this module combination supports.
Model compatibility	E320 router E120 router
Line module compatibility	ES2 10G LM ES2 10G ADV LM
SRP module compatibility	SRP-100 SRP-120 SRP-320
Line module redundancy compatibility	Can be paired with an ES2 10G LM. Must be installed in the same redundancy group as an ES2 10G LM and ES2–S1 REDUND IOA combination.
Port redundancy support	Not applicable
Cables and connectors (copper SFP)	Maximum range is 100 meters on CAT5 cable.
Cables and connectors (multimode [SX])	One LC full duplex connector Transmit power: min: –9.5 dBm max: –3 dBm Receive input power: min: –20 dBm max: 0 dBm See the following corresponding table (SX Fiber Optic Cabling) for cabling requirements. See E120 and E320 Hardware Guide, Chapter 5, Cabling the Router for more information.
Cables and connectors (single-mode [LX])	One LC full duplex connector Transmit power: min: –9.5 dBm max: –3 dBm Receive input power: min: –20 dBm max: –3 dBm See the following corresponding table (LX Fiber Optic Cabling) for cabling requirements. See E120 and E320 Hardware Guide, Chapter 5, Cabling the Router for more information.
Cables and connectors (single-mode LX40)	One LC full duplex connector Transmit power: min: –4.5 dBm max: 0 dBm Receive input power: min: –35 dBm max: –22.5 dBm See the following corresponding table (LX40 Fiber Optic Cabling) for cabling requirements. See E120 and E320 Hardware Guide, Chapter 5, Cabling the Router for more information.
Cables and connectors (single-mode [ZX])	One LC full duplex connector Transmit power: min: –2 dBm max: 3dBm Receive input power: min: –22 dBm max: –3 dBm See the following corresponding table (ZX Fiber Optic Cabling) for cabling requirements. See E120 and E320 Hardware Guide, Chapter 5, Cabling the Router for more information.
LEDs	Board-level LEDs: OK (green)—Physical link is connected properly and is functioning properly FAIL (red)—Failure detected Port LEDs: LK (green)—Ethernet link is up ACT (green)—Blinks when there is Ethernet traffic being received
Alarms, errors, and events	See Monitoring Ethernet Interfaces in JunosE Physical Layer Configuration Guide, Chapter 5, Configuring Ethernet Interfaces.

Table 12: SX Fiber Optic Cabling

Fiber Type	Minimal Modal Bandwidth at 850 nm (MHz*km)	Maximum Operating Range (meters)
62.5 microns	160	220 (656.17 ft)
	200	275 (902.23 ft)
50 microns	400	500 (1640.42 ft)
	500	550 (1804.46 ft)

Table 13: LX Fiber Optic Cabling

Fiber Type	Nominal Wavelength (nm)	Maximum Operating Range (kilometers)
9 microns	1310	10 (6.2 miles)

Table 14: LX40 Fiber Optic Cabling

Fiber Type	Nominal Wavelength (nm)	Maximum Operating Range (kilometers)
9 microns	1310	40 (24.85 miles)

Table 15: ZX Fiber Optic Cabling

Fiber Type	Nominal Wavelength (nm)	Maximum Operating Range (kilometers)
10 microns	1550	70 (43.5 miles)

Table 16: Single-strand SFPs Pairing

Fiber Type	Nominal Wavelength (nm)	Maximum Operating Range (kilometers)
9 microns	TX 1310, RX 1550 Pairs with TX 1550 / RX 1310	10 (6.2 miles), matching SFP must have the same operating range
9 microns	TX 1550 / RX 1310 Pairs with TX 1310, RX 1550	10 (6.2 miles), matching SFP must have the same operating range
9 microns	TX 1310, RX 1490 Pairs with TX 1490 / RX 1310	10 (6.2 miles), matching SFP must have the same operating range
9 microns	TX 1490 / RX 1310 Pairs with TX 1310, RX 1490	10 (6.2 miles), matching SFP must have the same operating range
9 microns	TX 1310, RX 1550 Pairs with TX 1550 / RX 1310	40 (24.85 miles), matching SFP must have the same operating range
9 microns	TX 1550, RX 1310 Pairs with TX 1310 / RX 1550	40 (24.85 miles), matching SFP must have the same operating range