TCA8000 and TCA8500 Chassis Overview

The chassis of both TCA8000 and TCA8500 Timing Servers look similar, only their internal function is different.

Note: Timing Server with AC power connector or DC power terminals are available.

Figure 1: TCA8000 and TCA8500—AC Timing Server, Front View

The front panel of the Timing Server with AC power connector contains the following components as shown in the Figure 1:

• 1–LCD screen
• 2–Selection buttons
• 3–OK button
• 4–MENU button
• 5–Critical alarm LED
• 6–Major alarm LED
• 7–Craft MGMT port
• 8–Minor alarm LED
• 9–Power LED
• 10–REFRESH button
• 11–CANCEL button

The LCD screen displays the applicable menus and the hostname as “Juniper Networks”. You can change the default IP address of the Timing Server through the craft MGMT port or by using the buttons. The LEDs display the power status and alarm status of the Timing Server.

Figure 2: TCA8000 and TCA8500—AC Timing Server, Rear View

The rear panel of the Timing Server with AC power connector contains the following components as shown in the Figure 2:

• 1–Power switch
• 2–AC power connector
• 3–10 MHz timing output port
• 4–5/1 MHz timing output port
• 5–PPS timing output port
• 6–IRIG-B timing output port
• 7–T1/E1 timing output ports (BITS)
• 8–T1/E1 timing input/output ports (BITS)
• 9–CClock timing output ports
• 10–GPS antenna port
• 11–LAN ports

The power switch is used to switch on or switch off the power of the Timing Server. The AC power connector is used to supply power to the Timing Server. Timing output ports are used to deliver 5/1 MHz output signal, 10 MHz output signal, Pulse-per-Second (PPS) output signal, Inter-Range Instrumentation Group – B (IRIG-B) output signal, T1/E1 output signal, and CClock output signal. Timing input/output ports are used to receive input from external T1/E1 sources and provide a timing T1/E1 source outputs. The GPS antenna port is used to connect the Timing Server with an appropriate GPS L1 antenna. Each LAN port is an RJ45 connector with synch and activity LEDs. Both the LAN ports can be used for out-of-band management network connectivity that is Telnet, web interface, and SNMP. The LAN port “LAN1” is used for the PTP or NTP network connectivity to the Timing Clients.

Figure 3: TCA8000 and TCA8500—DC Timing Server, Front View

The front panel of the Timing Server with DC power connectors contains the following components as shown in the Figure 3:

• 1–Retainer screws
• 2–LCD screen
• 3–Selection buttons
• 4–OK button
• 5–MENU button
• 6–Power LED
• 7–Critical alarm LED
• 8–Major alarm LED
• 9–ESD grounding point
• 10–Craft MGMT port
• 11–Minor alarm LED
• 12–ACO button
• 13–REFRESH button
• 14–CANCEL button
• 15–Card ejectors

The LCD screen displays the applicable menus and the hostname as “Juniper Networks”. You can change the default IP address of the Timing Server through the craft MGMT port or by using the corresponding buttons. The LEDs display the power status and alarm status of the Timing Server. The retainer screws are used to secure the removable base board inside the chassis and the card ejectors are used to gently remove the base board from the chassis for service. You can clear all alarms set on the device by using the ACO button.

Caution: You must loosen the retainer screws before removing the base board from the chassis using the card ejectors for any servicing requirement.

Caution: To protect the device and its components from electrostatic damage, wear an antistatic wrist strap and connect it to the ESD grounding point while handling the device.

Figure 4: TCA8000 and TCA8500—DC Timing Server, Rear View

The rear panel of the Timing Server with DC power connectors contains the following components as shown in the Figure 4:

• 1–DC power terminal B
• 2–IRIG-B timing output port
• 3–10 MHz timing output port
• 4–GPS antenna port
• 5–T1/E1 timing input/output ports (BITS)
• 6–Cclock timing output ports
• 7–T1/E1 timing output ports (BITS)
• 8–LAN ports
• 9–DC power terminal A
• 10–PPS timing output port
• 11–5/1 MHz timing output port

Both of the DC terminals have positive, negative, and ground terminals used to connect a DC power source to the Timing Server. All other components of the DC version Timing Server performs the same operation as that of the AC version Timing Server.