CPAC-TR-25LR-D-BCC | Checkpoint Compatible 10GB & 25GB Single-Mode 10km (25GBASE-LR)

Q: Will this work in place of the Checkpoint CPAC-TR-25LR-D?
A: Yes. The CPAC-TR-25LR-D-BCC is built to the same IEEE 802.3cc 25GBASE-LR and SFP28 MSA specifications as the Checkpoint original, with matching 1310nm wavelength, 10km reach, and dual-rate 10G/25G support. It provides plug-and-play compatibility with Checkpoint appliances using SFP28 interfaces including CPAC-4-10/25F-D and CPAC-2-40/100F-D network cards.

Q: Which Checkpoint appliances support this transceiver?
A: This transceiver is compatible with Checkpoint Quantum appliances that have SFP28-capable interface cards, including models 9400, 9700, 9800, 19200, and 29000 series when equipped with CPAC-4-10/25F-D or CPAC-2-40/100F-D network interface cards. Verify your appliance has an SFP28 port that supports 10G/25G operation before ordering.

Q: Does this module require FEC to be enabled on the host port?
A: Yes at 25G. The 25GBASE-LR standard requires RS-FEC (Reed-Solomon forward error correction) on the host side for full 10km reach at 25 Gbps. Most Checkpoint platforms auto-enable RS-FEC when detecting a 25GBASE-LR module, but verify FEC is configured identically on both link ends to avoid link-down conditions. At 10G operation the module behaves as 10GBASE-LR and does not require host FEC.

Q: Can this module run at 10G speed in an SFP28 port?
A: Yes, if the host port supports dual-rate selection. This transceiver operates at both 10.31 Gbps (10G Ethernet) and 25.78 Gbps (25G Ethernet). Not all SFP28 ports auto-negotiate speed; some require manual configuration to select 10G mode. Consult your Checkpoint appliance documentation to confirm dual-rate support on the specific interface card before deploying in a 10G-only link.

Q: What fibre type and quality is required for 10km reach?
A: This transceiver requires single-mode fiber compliant with ITU-T G.652 specification (standard OS2 SMF with 9/125 µm core). The 10km reach assumes typical fiber attenuation of 0.5 dB/km at 1310nm and clean LC/UPC connectors with insertion loss below 0.75 dB per mated pair. Actual distance depends on cumulative fiber loss, splice loss, and connector cleanliness; links exceeding 8 dB total loss may not achieve 10km at 25G even with RS-FEC enabled.