Spectracom TTS 240 & TTS 240Rb Network Time Server

• Stratum 1 NTP/SNTP Time Server
• Rubidium Oscillator (model TTS 240Rb)
• Reliable, precise GPS time reference with modem dial-out to National Institute of Standards and Technology (NIST)
• Web-based user interface with Secure Sockets Layer (SSL) protection
• Secure remote login and file transfer with Secure Shell (SSH), Secure Copy Protocol (SCP) and Secure File Transfer Protocol (SFTP)
• Ethernet 10/100 BaseT
• Two programmable front panel LCD screens
• Rack Mount Hardware Included
• IRIG B/E with AM or TTL Output
• Web-based NTP Setup and management
• Remote diagnostics, upgrades, configuration and control over secure communication link
• Automatic adjustment for local time, daylight saving time and year
• 5-Year Warranty

Product Overview

The Spectracom TTS 240 is a reliable network timeserver that is part of the Spectracom total timing solution. Using NTP, the TTS 240 is designed to synchronize computer networks to ensure that all components are running on the same time. It is ideally suited to handle synchronization over networks running security applications, building automation, e-commerce transactions and any other environment where accurate synchronized time is essential.

The TTS 240 automatically tracks up to twelve satellites simultaneously, and provides extremely accurate timing by synchronizing to the satellites’ atomic clocks. An external modem provides dial-out access to NIST’s ACTS or other dial-up services.

Enhanced security features including: Secure Shell (SSH), Secure Sockets Layer (SSL), Secure Copy Protocol (SCP) and Secure File Transfer Protocol (SFTP) ensure operational integrity.

A variety of time code outputs are available to meet the requirements of numerous systems - two RS-232 serial ports, two RS-485 data bus ports, IRIG B/E and TTL, plus frequency outputs of 10 MHz and 1 PPS. Alarm outputs and programmable timer outputs are also provided. For ease of integration and management, the TTS 240 supports SNMP.

Rubidium Option: Where greater holdover capability is required, Spectracom offers the TTS 240 Network Time Server with a rubidium oscillator option. The TTS 240Rb is ideal for situations where climate conditions and/or physical obstructions may cause temporary GPS signal loss and precise synchronization still must be maintained.

Each Spectracom TTS 240 or TTS 240Rb system includes a UL-approved international power supply. 

Technical Specifications

Accuracy	Typical 1PPS output ±50 nanoseconds of UTC RS-232/RS-485: Time code ±100 microseconds to ±1 millisecond of UTC, format dependent Ethernet NTP: Output jitter within ±50 microseconds relative to UTC typical. Conforms with or exceeds RFC 1305 and 2030. Supports unicast, multicast and MD5 authentication. IRIG B/E ± 20 microseconds to ± 200 microseconds of UTC, format dependent 10MHz 1x10(-10) locked to GPS, long-term
Outputs	Type: Connector: Ethernet 10/100 BaseT RJ45 (auto sensing) Two RS-232 Serial Comm. DB9 female Two RS-485 Once-per-Second 3.81mm Terminal Block IRIG B/E AM/TTL BNC 1PPS, Pulse Per Second BNC 10 MHz BNC Three Alarm/Programmable Timer 3.81mm Terminal Block
Security Features	SSL Web Based Interface: Web UI uses SSL to allow the use of the secure HTTPS protocol to access configuration and status web pages. SSH: utilizes SSL and data compression technologies to provide a secure and efficient means to control, communicate with, and transfer data to or from the master clock remotely. SCP: is used to securely transfer files to and from the time server over an SSH session. SFTP: is an FTP replacement that operates over an encrypted SSH transport. SNMPv3: allows remote configuration and management over an encrypted connection.
Inputs	Type: Connector: RS-232 Serial Set-up Interface DB9 female GPS Antenna Coaxial N type Power 2.5 mm male, center positive
	Serial set-up interface configures network settings. The port works at 9600 baud, 8N1, and can be accessed with a PC terminal emulator.
Dial-out Modem (Primary or Back-up)	Serial port connects to an external modem that provides back-up connection to Legally Traceable Time™ from NIST in the event of a loss of GPS signal.
Power	90-240 VAC, 47-63 Hz from supplied external CE/UL/CSA approved T00060power supply with IEC 320 universal power cord connector. North American power cord included. Alternate type line cords or adapters may be obtained locally. Unit operates from12 VDC nominal (+9.5 - +30 VDC) @ 1.0 amps. Rubidium uses T00061, 24 VDC nominal (+22.5 – 30 VDC) @ 2.5 amps.
Front Panel	Ethernet port Status Indicators: “Power” and “Sync” multi-color LED Selectable 12 or 24 hour display, Hours, Minutes, Seconds, Day of Year
Warranty	5-Year Warranty (The Rubidium oscillator, if supplied, is warranted for two years from date of shipment.) Extended warranty is available.

Physical & Environmental Specifications

Size/Weight	EIA 19” rack mount W x 1.75”H x 11.0”D/4.8 lbs (483 mm W x 44 mm H x 305 mm D/2.2 kg Rubidium option is 3.5” H (88mm) and 8 lbs (3.6 kg) Rack Mount hardware included (assembly required)
Environmental	32°F to 122°F [-0°C to 50°C] operating range -40°F to +185°F [-40°C to +85°C] storage range 10% - 95% relative humidity, non-condensing
Agency Approvals	CE Mark EN60950, EN55022, EN55024, FCC Part 15, UL/CSA listed power adapter

Antenna and Accessories

Antennae	GPS Outdoor Antenna, Model 8225 GPS Indoor Window Mount Antenna, Model 8228 Received Frequency: 1575.42 MHz Satellites Tracked: One to Twelve, Simultaneous, GPS T-RAIM satellite error management. Single satellite mode. Acquisition Time: Cold start: 250 seconds typical
Antenna Accessories	Antenna Mount for Flat Roof, Model 8213 Antenna Surge Protector, GPS, Model 8226 Antenna Surge Protector Grounding Kit, Model 8226-0002-0600 Antenna Preamplifier, Model 8227 Antenna Splitter, Model 8224 Antenna Cable, LMR equivalent, CAL7xxx (where xxx=feet), specify CALP7xxx for plenum-rated cable.
Software	Contact the Sales department for more information
Time Distribution	Ethernet Time Server, Model 9188, one per secure network TimeTap® Adapter, Model 8179T, RS-485 to RS-232, one per device, includes 12 VDC power supply. TimeBurst, Model 8185, broadcast time to wireless devices over existing radio system
Redundant Systems	TimeGuard® Monitor/Selector, Model 8145, protects against single time server failure, contact the Sales Department for recommendations on redundancy for mission critical applications Antenna Cable, LMR-400 equivalent, CAL7xxx, xxx=length in feet.
Display Clocks	TimeView® wired and wireless digital and analog clocks
Service Options	Premium Support Package Extended Warranty

Ordering Information

1	TTS 240/Network Time Server
2	TTS 240Rb/Network Time Server with Rubidium option Stability of TTS240, 10 MHz locked to GPS: 1 x 10-11. Stability of TTS240Rb, 10 MHz unlocked, 7 x 10-11 (average drift in 30 days).
	This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. This product includes cryptographic software written by Eric Young (eay@cryptsoft.com).