background image

Line Shield & FRGND (JB2)

This jumper affects the line interface.  In the connected (closed)

position, it links RJ-11 pins 1 & 6, or RJ-45 pins 2 & 7 to frame ground.
These pins can be used as connections for the twisted pair cable
shield.  In the open (disconnected) position, pins 1 & 6 (or 2 & 7)
remain connected to each other, but are “lifted” from the frame ground. 

JB2

Position 1&2  =  Line Shield and FRGND Connected
Position 2&3  =  Line Shield and FRGND Not Connected

DTE Shield & Frame Ground (JB3)

In the connected position, this jumper links DB-25 pin 1 (M/34 pin

A) & frame ground.  In the open position, pin 1(pin A) is “lifted” from
frame ground. 

JB3

Position 1&2  =  DTE Shield (DB-25 Pin 1 or M/34  Pin A)

and FRGND Connected

Position 2&3  =  DTE Shield (DB-25 Pin 1 or M/34  Pin A) 

and FRGND Not Connected

Signal Ground & Frame Ground (JB4)

In the connected position, this jumper links DB-25 pin 7 or M/34 pin

B (Signal Ground) and frame ground.  In the open position, pin 1 (or pin
B) is “lifted” from frame ground. 

JB4

Position 1&2  =  SGND (DB-25 pin 7 or M/34 pin B) 

and FRGND Connected

Position 2&3  =  SGND (DB-25 pin 7 or M/34 pin B) 

and FRGND Not Connected

12

3.2.1   REAR CARD JUMPER SETTINGS

Figure 6 (below) shows jumper locations for the four rear card

options. These jumpers determine various grounding characteristics for
the RS-232/V.35 and twisted pair lines.  

Figure 7 (below) shows the orientation of the rear interface card

jumpers.  The jumper can either be on pegs 1 & 2, or on pegs 2 & 3.  

The table below provides an overview of interface jumper functions

for the rear interface cards.  Following this overview is a detailed
description of each jumper’s function.

11

Figure 6. Rear card jumper locations 

JB2

(peg 1 on left)

JB3

(peg 1 on top)

JB4

(peg 1 on left)

1

2

3

1

2

3

1

2

3

Figure 7. Orientation of interface card straps 

REAR CARD STRAP SUMMARY 

Strap

Function

Position 1&2

Position 2&3

JB2

Line Shield & FRGND

Connected

Open*      

JB3

DTE Shield (Pin1) & FRGND

Connected       

Open*

JB4

FRGND & SGND

Connected

Open*

Содержание 1045RC

Страница 1: ...Powered High Speed Short Range Modem Rack Mount Card SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M1045RC B Doc 054051UB Revised 3 14 97 C E R T I F I E D An IS...

Страница 2: ...ar installation If the Model 1045RC does cause interference to radio or television reception which can be determined by turning the power off or removing the card the user is encouraged to try to corr...

Страница 3: ...iode surge suppressors The Model 1045RC is designed to mount in Patton s 2U high 19 rack chassis This 16 card chassis has a switchable 120 240 VAC power supply optional 48 VDC and mounts cards in a mi...

Страница 4: ...peration in switched carrier multipoint and or hardware handshaking applications S1 7 Setting Off Constantly on On Controlled by RTS S1 8 V 52 and V 54 Diagnostic Test To reset the V 54 circuit set sw...

Страница 5: ...ng mode S2 6 Setting On Asynchronous Off Synchronous Note in asynchronous mode the Clock Source must be set to Internal S1 5 On S1 6 On 7 S2 7 RS 232 V 35 Initiation of Local Analog Loopback Test The...

Страница 6: ...ward the front of the PC board 9 3 2 REAR CARD CONFIGURATION The Model 1045RC has four rear interface card options DB 25 RJ 11 DB 25 RJ 45 M 34 RJ 11 and M 34 RJ 45 see Figure 5 below Each of these op...

Страница 7: ...ignal Ground and frame ground In the open position pin 1 or pin B is lifted from frame ground JB4 Position 1 2 SGND DB 25 pin 7 or M 34 pin B and FRGND Connected Position 2 3 SGND DB 25 pin 7 or M 34...

Страница 8: ...lled cards 4 2 INSTALLING THE MODEL 1045RC INTO THE CHASSIS The Model 1045RC is comprised of a front card and a rear card The two cards meet inside the rack chassis and plug into each other by way of...

Страница 9: ...ment are NOT acceptable For further information about acceptable wire grades please refer to the diagram in appendix B Point to Point Twisted Pair Connection The 6 position RJ 11 and 8 position RJ 45...

Страница 10: ...LED will blink sporadically 17 4 If the BER test indicates no errors are present move the V 52 toggle switch to the left thus activating the 511 E test with periodic errors If the test is working pro...

Страница 11: ...ch on both Model 1045RCs must be turned on 2 If the test indicates no errors are present move the V 52 toggle switch to the left thus activating the 511 E test with errors present If the test is worki...

Страница 12: ...he above data rate distance table as a general guideline only 21 APPENDIX C MODEL 1045RC FACTORY REPLACEMENT PARTS The Patton Model 1045RC rack system features interchangeable rear cards power cords f...

Страница 13: ...m 1045RC 9 Receive Clock B From 1045RC 11 External Clock B To 1045RC 12 Transmit Clock B From 1045RC To 1045RC Data Term Ready DTR 20 DIRECTION CCITT V 35 EIA 530 INTERFACE DB 25 DIRECTION To 1045RC E...

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