612877SBONT-22B
3
2. Remove the rubber grommet from the housing and insert the
Power/Alarm Connector cable through the grommet.
3. To terminate the two UPS power leads (Pins 6 and 7) and, if needed,
the five alarm status leads in the Power/Alarm Connector, trim
back the insulation on all wires. Use a flat head screwdriver and
loosen all the screws on the Power/Alarm Connector. Insert one
wire at a time and tighten the screws to make an electrical contact.
4. Reconnect the Power/Alarm Connector to the bottom of the
Electronics Module.
5. Tie wrap the wires using the tie wrap anchor points just below the
Power/Alarm Connector.
6. Replace the rubber grommet.
Connect POTS
The telephone service or POTS connection is provided through pivot-
connectors located on the right side of the Electronics Module. The RJ-11
jacks are for test purposes only. Inserting an RJ-11 jack (i.e., telephone
cable or telephone test set) will connect the telephone set to the ONT and
also disconnect the subscriber service from the ONT providing fault
isolation to the SBU or premises wiring.
To terminate the POTS connections, refer to the figure in the next column
and complete the following steps.
1. Trim each wire to length. Identify each pair in the service cable.
2. Remove the rubber grommet from the housing and insert the POTS
cables through the grommet.
3. Flip the pivot connector to the “up” position.
4. Insert the appropriate wires
TIP
(green) and
RING
(red).
5. Flip the pivot connectors to the “down” position.
6. Replace the rubber grommet in the housing.
Install Ethernet and/or DS1 Connections
The SBU ONT supports two GigE connections (10/100/1000). The cable
used should be rated CAT-5 or 6. To install the Ethernet connectors, refer
to the figure below and Ethernet Pin-Outs table below, and complete the
following steps:
1. Route the Ethernet and DS1 cables through the same opening as the
POTS cables.
Power and Alarm Connector Pin-outs
Pin-Out Power and
Alarm Connector
Description
Pin-Out UPS
Connector
1
LOW BAT
1
2
BAT MIS
2
3
REP BAT
3
4
ON BAT
4
5
SIG RTN
5
6
12 V RTN
6
7
+12 VDC
7
Pin 1
Pin 7
1
2
3
4
5
6
7
UPS Power
Connector
Power/Alarm
Connector
Low Battery
Battery Missing
Replace Battery
On Battery
Signal Return
12V Return
+12VDC
2. Strip back the jacket of the subscriber Ethernet cable and connect
the 4-pair twisted wires to the RJ-45 Plug using an RJ-45 crimper.
The Ethernet Pin Out table below lists the individual pin out
designations.
3. Insert the terminated RJ-45 jack into the appropriate
ETHERNET 1–2
socket on the ONT.
For the DS1 connections, refer to the illustration above and the table
below, and complete the following:
4. Trim the insulation on the subscriber DS1 cable and connect the
wires to the RJ-45 connector using an RJ 45 crimper. Connect these
wires per the following table.
5. Insert the terminated RJ-45 jack into the appropriate
DS1–4
socket
on the ONT.
6. Check Ethernet connectivity using the LED status as indicated in
the table at the top of the next column.
Ethernet RJ-45 Pin-outs
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
DS1 RJ-45 Pin-outs
Pin
Name
Description
1
RX RING
Receive data from the end customer (CPE)
2
RX TIP
Receive data from the end customer (CPE)
3
–
Unused
4
TX RING
Transmit data towards the end customer (CPE)
5
TX TIP
Transmit data towards the end customer (CPE)
6–8
–
Unused
F
R
T
E
N
LO
W
B
AT
BA
T
MI
S
RE
P
BAT
ON
BA
T
SI
G
RT
N
12V
RTN
+1
2VDC
Ethernet
Connection (White)
DS1
Connection (Red)
TELEPHONE TROUBLESHOOTING:
1. Identify the bad line (POTS 1-8).
2. Plug any working phone into
the appropriate jack.
If the telephone works, the unit
is functioning normally.
If the telephone does not work,
contact your service provider.
3. Remove the telephone from the
POTS jack.
TOTAL ACCESS 372
1287722G1
POTS
Connection (White)
