User's Manual

2. System Description 2-6

Master I/O Expansion I/O E1/T1

42xE1/T1 Master I/O 21xE1 Expansion I/O 63xE1/T1

Includes 1-155 Mbps Fast Ethernet

GigE Master I/O None 2xE1/T1 Includes 1-300 Mbps Gigabit Ethernet

GigE Master I/O 16xE1 Expansion I/O 18xE1/T1

Includes 1-300 Mbps Gigabit Ethernet

GigE Master I/O 21xE1 Expansion I/O 23xE1/T1

Includes 1-300 Mbps Gigabit Ethernet

All modules are inserted from the back panel of the chassis. All modules are hot

swappable. The modularity allows for future upgrades via new hardware modules

without a full replacement of a complete chassis. In addition, repair and maintenance

costs are minimized since individual modules can be repaired or replaced.

2.3.3 Back Panel Connectors

The following illustration shows EVENT 5800 back panel connector locations in a typical,

basic unit.

2.3.3.1 Power Supply Module Connector

-48V Power Input: -48V (Non-isolated Input); 2-pin captive power connector. EVENT

5800 requires an input of -48 Volts DC ±10% at the back panel DC Input connector. The

total required power depends on the option cards and protection configuration (1+0,

1+1). Back panel power connector pins are numbered 1-2, from left to right, when facing

the unit back panel. Pin 1 is the power supply return and is connected to chassis ground

internally. Pin 2 should be supplied with a nominal -48V DC, with respect to the unit

chassis (ground). A ground-isolated supply may be used, provided it will tolerate

grounding of its most positive output.

The recommended power input is -44 to -52V DC at 2 Amps minimum. Any power supply

used must be able to supply a minimum of 125 W to the EVENT 5800.

A mating power cable connector is supplied with EVENT 5800. It is a 2-pin plug, 5 mm

pitch, manufactured by Phoenix Contact, P/N 17 86 83 1 (connector type MSTB 2, 5/2-

STF). This connector has screw clamp terminals that accommodate 24 AWG to 12 AWG

wire. The power cable wire should be selected to provide the appropriate current with

minimal voltage drop, based on the power supply voltage and length of cable required.

The recommended wire size for power cables under 10 feet in length supplying -48V DC

is 18 AWG, minimum.

EVENT 5800 unit does not have a power on/off switch. When DC power is connected to

the unit, the digital radio powers up and is operational. There can be up to 5 W of RF

power present at the antenna port. The antenna should be directed safely when power is

applied. The EVENT 5800 is normally supplied with an external power supply that has an

on/off switch.

2.3.3.2 Controller Module Connectors

The following illustration shows the connectors on the Controller Module: