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C

CO

ON

NFFIIG

GU

UR

RA

ATTIIO

ON

N

The Model 1088/K is equipped with two sets of eight DIP switches,

which allow configuration of the unit for a wide variety of applications.
This section describes switch locations and explains all possible con-
figurations.

3.1  CONFIGURING THE HARDWARE DIP SWITCHES 

The 16 external switches are grouped into two eight-switch sets,

and are externally accessible from the underside of the Model 1088/K
(See Figure 1, below).   

The two sets of DIP switches on the underside of the Model 1088/K

will be referred to as S1 and S2.  As Figure 2 shows, the orientation of
all DIP switches is the same with respect to “ON” and “OFF” positions.  

5

Figure 2. Close Up of Configuration Switches (all sets are identical in appearance) 

Figure 1. Underside of Model 1088/K, Showing Location of DIP Switches

Front

Rear

On

S1

S2

Off

3.1.1  Configuration DIP Switch Set “S1”

Switches S1-1 through S1-8 may be used to configure CO/CP

operation, line framing and coding, CRC-4 operation, and DTE initiated
loop diagnostics.  Default settings of S1 Switches are shown in the
table below.

Switch S1-1:  CO/CP 

Use Switch S1-1 configure the CO (located at the Central Office or

or G.703/G.704 demarcation point) or CP (located at the Customer
Premises) mode of the 1088/K.

S1-1

CO/CP Mode

Off

CO = located at the Central Office

On

CP = located at the Customer Premises

CO/CP Configuration:

The Model 1088/K does not use clock mode settings as described
in other Patton mDSL products. Instead, the Model 1088/K will
always recover the clocking from the G.703/4 network and use this
clock to send data across the DSL span to the remote DSL
modem, which will  use the incoming to send data out to G.703/4
network.  Therefore, one unit must be set for CO mode (located at
the G.703 demarcation), and the other unit must be set for CP
mode (located at the customer premises).  This type of clocking
method was employed for two reasons:

1) To allow two independent networks to use the modems as inde-

pendent clocking paths.

2) To allow the user to independently specify the timing source for

the network based on external equipment.

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Position

Function

S1-1

CO/CP Setting

On

CP Mode

S1-2

Line Coding

Off

HDB3 

S1-3

CRC-4 Enable

Off

Disabled

S1-4

Reserved

Off

S1-5

Reserved

On

S1-6

Reserved

Off

S1-7

Reserved

On

S1-8

Reserved

Off

 

Factory Default

S1 SUMMARY TABLE

OFF

ON

Содержание 1088

Страница 1: ...MODEL 1088 K mDSL Modem with fixed G 703 G 704 Interface Part 07M1088 K B Doc 033141UB Revised 02 22 00 SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com An ISO 9001 Certif...

Страница 2: ...oduct These damages include but are not limited to the following lost profits lost savings and incidental or consequen tial damages arising from the use of or inability to use this product Patton Elec...

Страница 3: ...mDSL Rocket offers the ability to extend G 703 G 704 service over Multi rate Symmetric Digital Subscriber Line technology Multi rate DSL offers the ability to deliver the maximum bit rate that a twis...

Страница 4: ...n in the table below Switch S1 1 CO CP Use Switch S1 1 configure the CO located at the Central Office or or G 703 G 704 demarcation point or CP located at the Customer Premises mode of the 1088 K S1 1...

Страница 5: ...e special violations and decodes them as zeros This method enables the network to meet minimum pulse density requirements Use HDB3 unless AMI is required in your application Alternate Mark Inversion A...

Страница 6: ...n 1664 On Off Off Off Off On 1728 Off Off Off Off Off On 1792 On On On On On Off 1856 Off On On On On Off 1920 On Off On On On Off 1984 Off Off On On On Off 2048 Switch S2 7 Reset Software Defaults Sw...

Страница 7: ...g S1 and S2 DIP switches in the ON position as described in Figure 3 below When the CO and CP units connect over DSL the CP will enter a pre defined default configuration Receive Recovered Clocking Du...

Страница 8: ...r a 75 Ohm connection coax insert JP1 JP4 JP5 and JP6 default 2 For a 120 Ohm connection RJ45 remove JP1 and JP4 JP5 and JP6 4 2 1 Connect Twisted Pair 120 ohm to G 703 Network The Model 1088 K is equ...

Страница 9: ...wire interface The signal pin relationships are shown in Figure 8 15 4 4 POWER CONNECTION Universal AC Power 100 240VAC The Model 1088 uses a 5VDC 2A universal input 100 240VAC power supply center pin...

Страница 10: ...cross the DSL span is active The DSL Link LED is Off when the link is down E1 FE1 Link Active Green Solid green On indicates a valid E1 connection LOS Active Red The Loss of Sync indicates that the un...

Страница 11: ...eives framed packets from the far end the DSL Link LED will be active If framed packets are not received the DSL Link LED will be inactive The restart procedure uses this information to determine if a...

Страница 12: ...the front panel switch or the DTE interface the unit will enter mode 1 If the units are linked NS LED off then the unit will enter a mode 2 Local Loop A Mode 1 Local Loop is shown in Figure 12 When t...

Страница 13: ...the box 23 Local Loop After the 511 511E pattern times out the ER led with 511 511E will begin flashing It will remain this way until continued the pattern generator switch is turned off Note that the...

Страница 14: ...again before the completion of the termination phase the switch will be ignored until it is placed back into the normal position 25 26 Remote Digital The Remote Digital Loop with 511 511E is Loop wit...

Страница 15: ...Using the V 52 BER Test Pattern Generator To use the V 52 BER tests in conjunction with the Remote Digital Loopback tests or with Local Line Loopback tests follow these instructions 1 Locate the 511 5...

Страница 16: ...de and Phase Modulation Line Rates DSL line 144 272 400 528 784 1040 1552 2064 Line Interface Transformer coupled 1500 VAC isolation mDSL Physical Connection RJ 45 2 wire polarity insensitive pins 4 a...

Страница 17: ...000 1 9 3 1 2064 1600 2048 5920 1 1 1 8 8000 1 5 2 5 Cross Talk 49 adjacent CAP pairs 26 AWG 0 4mm 24 AWG 0 5mm Transmission Distance Patton NetLink mDSL Model 1088 No Cross Talk 26 AWG 0 4mm 24 AWG 0...

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