APPENDIX A
SPECIFICATIONS
Category: UL listed secondary protector according to UL497A
Interface: Dial-up, leased line, DDS or T-1, depending upon model
Connectors: Modular RJ-11 or RJ-45 female, input and output
Wires Protected: Dial-up/ 2 wires, all others/ 4 wires
Surge Capacity: 3.8 kV (1.2/50µS), 1.9 kA (8/20µS)
Clamp Voltage: Residual surge
†
@ 2 kV (1.2/50µS), 1 kA (8/20µS
waveform [105 volts]) (see table below)
Construction: UL94-5V rated flame retardant plastic
Size: 3" x 1.7" x .8"
Relative Humidity: 0 to 95%, non-condensing
Temperature: -40 to +85
O
C (-40 to +185
O
F)
†
Residual surge is a special term defined by IEEE
and NEMA to replace the term "clamp voltage".
4.0 INSTALLATION
The Patton Model 550 Series is easy to install. The following
instructions clearly explain each step.
NOTE: Make sure you follow the installation instructions exactly; if
the suppressor is improperly installed, the current limiting feature
could be rendered inoperable.
1. Connect the "protected" interface of the Model 550 to your
communications equipment using a
straight through
modular cable of
the shortest possible length: dial-up (LL2) and leased lines (LL4) use
an RJ-11 interface, DDS and T1 use an RJ-45 interface.
2. Connect the Model 550's braided metal grounding strap
securely to the nearest available
chassis ground
(see diagram below).
NOTE: If you have any question as to how your hardware is
grounded, consult the manufacturer's user manual(s).
3. Connect the "unprotected" interface of the Model 550 to the
incoming telco line.
NOTE: Since the Model 550 is a secondary device, it is designed
for
inside use only
.
WARNING:
Do not
attempt to connect this surge protector during
a lightning storm. Patton Electronics Company accepts no liability
for damage or injury associated with the use of this product.
NOTE: The protected device should also have AC suppression to
prevent transients from entering the system via the incoming AC
power connection. These transients also can show up as failures
on the communication link.
3
4
To computing
hardware
To Telco
line
To chassis
ground
Protected
Unprotected
Rated
Patton
Unit
Operating
Max
RJ-11 Pins
RJ-45 Pins
Model
Application
Voltage
Clamp*
Protected
Protected
550-LL2
Dial-Up
190
270V
3,4
4,5
550-LL4
Leased Line
75
105V
2,3,4,5
3,4,5,6
550-DDS
DDS
75
105V
–
1,2,7,8
550-T1
T1
130
225V
–
1,2,4,5
*Maximum surge test waveform
1.9 kA (8/20µS)
3.8 kV (1.2/50µS)
UL Approved Patch
Cable (supplied with
DDS and T1 models)