A/B Switch, Installation Guide
Manual PT# 262008 Rev-
EAST COAST DATACOM, INC., 245 Gus Hipp Blvd., STE 3, Rockledge FL 32955
TEL: (321) 637-9922 FAX: (321) 637-9980 www.ecdata.com
DESCRIPTION
The A/B Switch allows secure and safe switching between computer or data ports. The unit supports switching
4-wires of user data traffic from the Common Port to Ports-A or Port-B. All switching is accomplished with dry
contact positive latching relays for years of dependable service. In the event of local power failure, the A/B
Switch will default to Port A.
The switching between Port A to Port B are accomplished with a remote device that applies a contact closure to
the A/B Switch via the RJ-45 Remote Port. The switching takes place when 4-GND and Pin-6 make or break con-
tact. If power is ever lost to the A/B Switch, the relays with switch to Port-A and continue working without
power.
The front panel has three status LED’s that present the user with Port A or Port B active status. A power LED is
also present to indicate that the A/B Switch has power applied.
The A/B Switch is housed in a sturdy metal enclosure and operates on only a 5V DC power supply. All connec-
tions and power are protected from surges via internal transorbs.
The A/B Switch has a three year warranty and a 24 hour turnaround on warranty repairs.
GROUND CONNECTION
The A/B Switch has a #8-32 threaded bolt on the back panel. If your system requires a positive ground to the
A/B Switch chassis, connect a ground wire to the #8-32 bolt provided.
VOLTAGE OPERATION
The A/B Switch is powered from a single 5V DC Power Supply which is wall mount.
ECDATA Transformer PT# 711019
AC Supply Input: 100-240AC
DC Output: 5.0V DC 1.5A 7.5W MAX
POWER CONNECTION
The wall mount transformer has a 2.5mm DC Jack attached to the cord.
Plug the 2.5mm jack into the A/B Switch connector marked: DC INPUT
Now, plug the wall mount transformer into the AC outlet.
