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3.2  INTERFACE POWER OPTION JUMPERS

Both versions of the Model 2400 can be powered from the supplied

AC power source, from DC power supplied to the power supply jack or
directly from the local RS-232/V.24 (Model 2400/A) or V.35 (Model
2400/C) interface.  To configure the unit to receive power from the local
interface, please refer to Sections 3.2.1 (Model 2400/A) and 3.2.2
(Model 2400/C). 

3.2.1  Interface Power Option (Model 2400/A)

Two jumper straps (JP1 and JP2) are used in combination to set

the Model 2400/A to receive its power from the RS-232 interface.
Figure 6 shows the position of JP1 and JP2 on the top side of the
Model 2400/A PC board.

Figure 7 below shows the orientation of the pins on the six pin

jumper block and possible settings of jumper straps JP1 and JP2.    

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NOTE: “*” indicates Factory Default Setting

JP1:  DC Power Supplied by Pin 9

The Model 2400/A  may be configured to receive its operating

power from by pin 9  on  the  RS-232 interface.  In the normal setting,
pin 9 is not used for interface power.

JP1

Position 1 & 4

Normal 

(default)

Position 4 & 5

Pin 9 Used for Interface Power.  In this setting 
the 2400/A is powered from the DTE 
interface.  Power should be applied to pin 9 
at +5VDC (±5%), 200mA. The AC wall-
mount transformer must not be connected 
in this setting.

NOTE:  The only allowable positions for Jumper JP1 are as listed 
above.

JP2:  DC Power Supplied by Pin 21

The Model 2400/A  may be configured to receive its operating

power from by pin 21 on the  RS-232 interface.  In the normal setting,
pin 21 is used for its normal function.

JP2

Position 5 & 6

Pin 21 Used for Interface Power.  In this setting
the 2400/A Series unit is powered from the 
DTE interface.  Powered should be applied to 
pin 9 at +5VDC (±5%), 200mA.  The AC 
wall-mount transformer must not be 
connected in this setting.

Position 3 & 6

Normal

(default)

NOTE:  The only allowable positions for Jumper JP2 are as listed 
above.

9

10

Figure 7. Possible Settings of Jumper Strap JP1 for Model 2400/A

JP1

JP2

Figure 6. Position of the DIP Switches on the 2400/A PC board

Switch S1

WARNING:  The Model 2400 will be damaged and will not be
covered by warranty if any other power supply input than 5VDC
±5% is used with the Interface Power Option.    

5

2

6

3

1

4

POSSIBLE SETTING COMBINATIONS FOR JP1 & JP2

JP1

JP2

Function

1 & 4

5 & 6

DC Powered by Pin 21

1 & 4

3 & 6

Normal* 

4 & 5

3 & 6

DC Powered by Pin 9

Summary of Contents for Patton SmartNode 2400 Series

Page 1: ...00 56 64 Kbps 4 Wire DDS and Clear Channel CSU DSU SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M2400 B Doc 099041UB Revised 7 16 97 C E R T I F I E D An ISO 900...

Page 2: ...radio frequency equipment the user is strongly advised to only use data cables with an external outer shield bonded to a metal or metalized connector 1 2 FCC INFORMATION The Model 2400 Series has been...

Page 3: ...network receive recovered clock Connecting directly to the RS 232 V 24 Model 2400 A or V 35 Model 2400 C port the ultra compact Model 2400 attaches without using additional cables The Model 2400 s bu...

Page 4: ...and loop control Figures 3 Model 2400 A and 4 Model 2400 C show the switch and jumper locations with respect to the other components on bottom side the PC board Figure 5 below shows a close up of DIP...

Page 5: ...s On 64 Kbps NOTE Power must be cycled off and then on to reset the Data Rate Switch S1 6 Front Panel Switch Enable Disable Switch S1 6 determines whether the front panel switches may be used to perfo...

Page 6: ...s not used for interface power JP1 Position 1 4 Normal default Position 4 5 Pin 9 Used for Interface Power In this setting the 2400 A is powered from the DTE interface Power should be applied to pin 9...

Page 7: ...erface the DTE terminal interface and the AC power supply 4 1 LINE NETWORK CONNECTION The RJ 48S port on a Model 2400 CSU DSU is prewired for a standard TELCO wiring environment as in Figure 4 below C...

Page 8: ...his connects with one of several available country specific power cords see the ordering information in Appendix C You may purchase these power cords from Patton Electronics or from a local vendor of...

Page 9: ...54 and V 52 test modes 5 1 FRONT PANEL LED STATUS MONITORS The Model 2400 features five front panel status LEDs that indicate the condition of the unit and communication link Figure 12 below shows the...

Page 10: ...oped back To perform an RDL test follow these steps 1 Activate RDL This may be done in two ways first by moving the front panel toggle switch UP to RDL second by raising the appropriate pin on the ter...

Page 11: ...e Modems SRMs are tested to the distances published in our Catalogs and Specification Sheets on twisted pair cable with the following characteristics Wire Gauge Capacitance Resistance 19 AWG 83nF mi o...

Page 12: ...itzerland Power Cord 07M2400 A User Manual APPENDIX D MODEL 2400 INTERFACE PIN ASSIGNMENT DDS CLEAR CHANNEL INTERFACE The DDS Clear Channel Interface is an RJ 48S modular jack Pin Signal 1 TX Line Tra...

Page 13: ...5 CTS Clear to Send 6 DSR Data Set Ready 7 SGND Signal Ground 8 CD Carrier Detect 9 User Selectable Supplemental Power Input or Not Used 15 TC Transmit Clock 17 RC Receive Clock 18 LL Local Loop 21 U...

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