Legacy Equipment

Legacy Timing Platforms We Support and Replace

Syncworks has supported network timing infrastructure for over two decades, including the platforms the industry has since discontinued. As an authorized stocking reseller for legacy Symmetricom, Microsemi, Microchip, Datum, and DCD equipment, we carry hard-to-find spare cards and replacement parts, and when the time comes to modernize, our engineers design the upgrade path on your timeline.

TimeProvider 5000 (TP5000)

Carrier-grade timing platform used for PRS and BITS distribution with modular cards and timing outputs.

Manufacturer: Symmetricom, Microsemi, Microchip
Status: Manufacture Discontinued Feb 1, 2024; End of Life Nov 30, 2025
Associated part numbers: 990-50301-02, 090-50301-02, 090-50311-01, 090-50312-01, 090-50314-01
Note: Spare cards and platform components are increasingly difficult to source, and modernization improves supportability and security posture.

Recommended replacement: TP4100 or TP4500

TimeSource 3000 / 3100 / 3500 / 3600

Legacy GNSS-based PRS platforms used as primary reference sources for network timing.

Manufacturer: Symmetricom
Status: Manufacture Discontinued Aug 1, 2014; End of Life Aug 1, 2019
Associated part numbers:
Plugin Shelf: 990-72010-01, 990-72010-06, 990-72010-07, 990-72020-01, 990-72020-06, 990-72050-01, 990-72050-06, 990-72050-07, 990-72060-01, 990-72060-06
Chassis: 090-72010-01, 090-72010-07, 090-72020-01, 090-72020-06, 090-72050-01, 090-72050-06, 090-72050-07, 090-72060-01, 090-72060-06, 093-72010-97, 990-70000-01

Recommended replacement: TP4100 or TP4500

TimeSource 3550 (TS3550)

GNSS-based PRS platform used as a primary reference clock at key nodes.

Manufacturer: Symmetricom
Status: Manufacture Discontinued Nov 9, 2023
Associated part numbers:
090-72510-71, 090-72550-71, 990-72015-72, 990-72055-96, 990-72055-99, 012-00014-01, 090-72000-01, 093-72010-98, 093-72050-93, 093-72050-94, 990-70005-01, 995-72000-99, 043-00018-02

Recommended replacement: TP4100 or TP4500

TimeProvider 1100 (TP1100)

Legacy timing system used for network synchronization and distribution.

Manufacturer: Symmetricom, Microsemi, Microchip (brand lineage)
Status: Manufacture Discontinued Mar 1, 2026
Associated part numbers:
990-58101-01, 990-58102-01, 990-58545-03, 090-58021-01, 090-58022-01, 090-58031-01, 090-58041-01, 090-58021-99, 090-58061-01, 090-58061-02, 090-58061-03

Recommended replacement: TP4100 or TP4500

TimeProvider 1500 (TP1500)

Packet PRS used as a primary reference source for packet networks.

Manufacturer: Symmetricom
Status: Discontinued Nov 15, 2013; End of Life Nov 15, 2014
Associated part numbers: 990-01500-01, 090-01500-01

Recommended replacement: TP4100 or TP4500

TimeProvider 2300 (TP2300)

Edge grandmaster / edge boundary clock (IEEE 1588 PTP) optimized for small cell and strict phase timing requirements in 4G/LTE.

Manufacturer: Symmetricom, Microsemi, Microchip
Status: Manufacture Discontinued Jun 30, 2020; End of Life Jul 1, 2025
Associated part numbers: 090-50240-101, 090-50240-102, 090-50240-202

Key capabilities (bullets):

  • Integrated GNSS
  • Accepts PTP as an input
  • Supports up to 64 PTP clients

Recommended replacement: TP4100 or TP4500

TimeProvider 2700 (TP2700)

Edge grandmaster / edge boundary clock (IEEE 1588 PTP) built for stringent phase timing and synchronization requirements.

Manufacturer: Symmetricom, Microsemi, Microchip
Status: Manufacture Discontinued Jun 30, 2020; End of Life Jul 1, 2025
Associated part numbers:
090-50201-0312, 995-50201-0312, 090-50201-212, 090-50201-112, 090-50201-111, 090-50201-211

Key capabilities (bullets):

  • Integrated GNSS
  • Accepts PTP as an input
  • Supports up to 64 PTP clients

Recommended replacement: TP4100 or TP4500

SyncServer S100 / S200 / S250 / S300 / S350

Legacy NTP time servers designed for Stratum 1 (GPS) or Stratum 2 (upstream NTP) operation with multiple Ethernet ports and timing outputs depending on model.

Manufacturer: Symmetricom
Status: Manufacture Discontinued Jun 30, 2016; End of Life Jun 30, 2018
Associated part numbers:
1520R-s100, 150R-s200, 1520R-s200-OCXO, 1520R-S200-rb, 1520r-s200-dc, 1520r-s250, 1520r-s250-ocxo, 1520r-s250-dc, 1520r-s300, 1520r-s300-ocxo, 1520r-s300-rb, 1520r-s300-rb-dc, 1520r-s350, 1520r-350-ocxo, 1520r-s350-rb, 1520r-s350-rb-dc

Key features (bullets):

  • High-bandwidth NTP time server, Stratum 1 via GPS
  • Three 10/100 Ethernet ports
  • Supports reference inputs like GPS, IRIG-B, 1PPS, 10 MHz (model dependent)
  • Management and security options include SSH/SSL/SNMP/HTTPS and IPv4/IPv6
  • Oscillator upgrades available (Rubidium, OCXO)

Recommended replacement: TP4100 or TP4500

Optional secondary replacement (NTP-specific): S600 (if you want a dedicated “modern NTP server” path)

DCD-523

Digital clock distribution and timing distribution system providing network synchronization and timing outputs across a modular, fault-tolerant platform.

Manufacturer: Symmetricom
Status: Legacy platform (refer to datasheet for architecture and capabilities)

Recommended replacement: TP4100 or TP4500

DCD-LPR

Legacy primary reference source and GNSS receiver/antenna option used within the DCD timing ecosystem.

Manufacturer: NavSync / Symmetricom ecosystem (legacy accessory for DCD timing platforms)
Status: Legacy platform (refer to datasheet)

Recommended replacement: TP4100 or TP4500

DCD-519, DCD-423, DCD-419, DCD-400

Large frequency distribution systems used historically for network timing distribution across a variety of frequencies. Not considered best practice for modern networks.

Manufacturer: Telecom Solutions (per your note)
Status: Legacy, manufacture discontinued in the late 1990s and early 2000s (approximate)
Resource: Refer to the DCD-523 datasheet for an example of DCD architecture and capabilities.

Recommended replacement: TP4100 or TP4500

TimeHub 5500 (TH-5500)

Modular telecom timing and synchronization platform used for frequency distribution, PRS integration, and network timing distribution within central office and core network environments.

Manufacturer: Microchip, Microsemi, Symmetricom
Status:
Manufacture Discontinued March 1, 2026
Associated part numbers:
990-55500-02, 990-55500-11, 090-55501-04, 090-55542-01, 990-55542-01, 090-55512-02, 090-55514-02, 090-55581-01, 090-55591-02, 090-55593-02, 990-55505-01, 990-55505-03, 990-55505-02, 990-55505-10, 090-55545-01, 090-55561-01, 990-55591-02, 990-55593-02, 093-55595-02, 093-55598-01, 093-55598-02, 090-55599-12

Recommended replacement: TP4100 or TP4500

Datum PRR-10

Primary reference receiver and distribution platform (refer to the PRR-10 documentation for configuration and module options).

Manufacturer: Datum, Inc.
Status: Legacy

Recommended replacement: TP4100 or TP4500

Austron TSG-3800, 2200A/2201A

Legacy timing and reference systems used for PRS and timing distribution.

Manufacturer: Austron
Status: Legacy

Recommended replacement: TP4100 or TP4500