User's Manual

61287781F2-22A 3
Step 2: Connect POTS (PHONE)
If POTS cables are not available, use Figure 3 and the following
procedure to create the POTS cables:
1. Trim the insulation for the subscriber POTS cables.
2. Refer to the illustration below and connect the twisted-pair Tip
(green) and Ring (Red) to the RJ-11 connector using an RJ-11
crimper.
3. Insert the RJ-11 connector in the appropriate PHONE 1 or
PHONE 2 jack.
Figure 3. POTS (PHONE) Connection
Step 3: Connect Ethernet
The 424RG ONU supports four 1 Gigabit (10/100/1000Base-T)
connections (GE 1 to GE 4).
If Ethernet cables are not available, use the following procedure and
table to create the Ethernet cables:
1. Trim the insulation for the subscriber Ethernet cable.
2. Connect the wires per the following table using an RJ-45
Crimper.
3. Insert the CAT 6 rated cable in the appropriate GE 1 through GE
4 ports on the rear of the 424RG ONU.
Step 4: Connect Power
Plug the supplied 12 VDC Power Adapter into the 12V connection on
the rear of the chassis. Connect the AC plug to a standard 120 VAC
outlet.
Step 5: Connect USB (optional)
NOTICE
DO NOT connect the Power Adapter and an UPS at the same time as
this will cause damage to the 424RG ONU. The ONT can be powered
by either power source, but not both simultaneously.
Ethernet RJ-45 Pin-out
Pin Name Description Color Code
1 TRD0+ Transmit/Receive Positive White/
Orange
2 TRD0- Transmit/Receive Negative Orange
3 TRD1+ Transmit/Receive Positive White/Green
4 TRD2+ Transmit/Receive Positive Blue
5 TRD2- Transmit/Receive Negative White/Blue
6 TRD1- Transmit/Receive Negative Green
7 TRD3+ Transmit/Receive Positive White/Brown
8 TRD3- Transmit/Receive Negative Brown
1 2 3 4
1 = Not Connected
2 = Tip
3 = Ring
4 = Not connected
The 424RG ONU can typically use an un-interruptible power supply
(UPS) if desired. Power is supplied to the 424RG ONU by a local
power source with battery backup that utilizes the AC power at the
customer premises. The UPS powers the 424RG ONU and functions
as a battery backup unit (BBU) supplying continuous 12 VDC. Refer
to the installation material that is provided with the UPS when
installing the BBU.
UPS Connector
Connect the UPS to the 8-pin MOLEX connector labeled “UPS”
located on the rear of the SFU ONT chassis. Figure 4 illustrates the
MOLEX connector on the rear of the ONT.
Figure 4. 8-Pin Molex Connector
The UPS Power/Alarm Connections Table below defines each pin on
the connector.
NOTE
ADTRAN offers a UPS Cable assembly (P/N 1287402G1) for this
connector.
UPS Power/Alarm Table
The following table indicates which pin is associated with each alarm
provided through a UPS connection.
NOTE
If an UPS is being used and is disconnected, the 424RG ONU is not
protected from power outages, and will send a “Battery Missing”
alarm to the OLT.
Pin-Out Description Alarm
1 Power Input (+12 VDC) -
2UPS Status - On Battery 1
3 UPS Status - Battery Missing 2
4 Signal Return -
5Power 12 V Return -
6 UPS Status - Replace Battery 3
7 UPS Status - Low Battery 4
8 No Connection -