The ONU provided by BSNL (Utstarcom 404i) has stopped working. It's an ancient model from 2010s and lacks a GE port. The LCO doesn't have any ONU in stock. The OLT used by ISP is Utstarcom BBS4000 model. Please suggest a suitable ONU/ONT for this OLT. The OLT specs are:
Specifications
EPON based on IEEE 802.3 ah standard;
Tree structure supporting up to 64 connections per EPON interface;
4 EPON ports in each EPM04 module;
Up to 44 EPON ports;
Transmission range up to 20 km for 32 connections and 10 km for 64 connections;
Fiber Optic: SC single mode fiber;
Transmission rate: Symmetric upstream and downstream 1Gbps;
Optical power budget: 29 dB;
Wavelengths: Transmit (Tx): 1490 nm, Receive (Rx): 1310 nm;
4 x 1000-X SFP Gigabit Ethernet ports in each GEM04 module for trunk connection;
Management: 1 RS-232 (RJ45) port, 1 10/100 Ethernet (RJ45) port on each CSM module;
Non-blocking switching architecture, flexible VCCI, UL and FCC part 15B address definition, Layer 2 IGMP snooping, VLAN 802.1p & q, IEEE 802.3ad link aggregation, ingress / egress port packet mirroring, packet buffering and advanced flow control;
Built-in quality of service (QoS) mechanisms: up to 8 CoS queues per subscriber, 802.1q & q, IPv4 TOS priority, dynamic bandwidth allocation (DBA), limiting the output bandwidth;
The ability to rate the transmitted traffic with an accuracy of 1 Mb;
Layer 3 routing functions: protocols: TCP / IP, ICMP, ARP, Proxy ARP, OSPF v2, BGP-4, RIPv2, PIM-DM, PIM-SM, IGMPv2;
User authorization based on: IEEE 802.1x / Radius;
9U in 19 "rack;
Dimensions (mm): 482.6 (W) x 415 (D) x 399.2 (H);
Weight: chassis (with ventilation) - 12.5 kg, maximum - 20.5 kg;
Power supply: Direct current: -48 Volts (2 replaceable modules for backup protection);
Power consumption: fully loaded: 438 watts maximum.
Specifications
EPON based on IEEE 802.3 ah standard;
Tree structure supporting up to 64 connections per EPON interface;
4 EPON ports in each EPM04 module;
Up to 44 EPON ports;
Transmission range up to 20 km for 32 connections and 10 km for 64 connections;
Fiber Optic: SC single mode fiber;
Transmission rate: Symmetric upstream and downstream 1Gbps;
Optical power budget: 29 dB;
Wavelengths: Transmit (Tx): 1490 nm, Receive (Rx): 1310 nm;
4 x 1000-X SFP Gigabit Ethernet ports in each GEM04 module for trunk connection;
Management: 1 RS-232 (RJ45) port, 1 10/100 Ethernet (RJ45) port on each CSM module;
Non-blocking switching architecture, flexible VCCI, UL and FCC part 15B address definition, Layer 2 IGMP snooping, VLAN 802.1p & q, IEEE 802.3ad link aggregation, ingress / egress port packet mirroring, packet buffering and advanced flow control;
Built-in quality of service (QoS) mechanisms: up to 8 CoS queues per subscriber, 802.1q & q, IPv4 TOS priority, dynamic bandwidth allocation (DBA), limiting the output bandwidth;
The ability to rate the transmitted traffic with an accuracy of 1 Mb;
Layer 3 routing functions: protocols: TCP / IP, ICMP, ARP, Proxy ARP, OSPF v2, BGP-4, RIPv2, PIM-DM, PIM-SM, IGMPv2;
User authorization based on: IEEE 802.1x / Radius;
9U in 19 "rack;
Dimensions (mm): 482.6 (W) x 415 (D) x 399.2 (H);
Weight: chassis (with ventilation) - 12.5 kg, maximum - 20.5 kg;
Power supply: Direct current: -48 Volts (2 replaceable modules for backup protection);
Power consumption: fully loaded: 438 watts maximum.