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>> Table: pmxIfTable - (.1.3.6.1.4.1.272.4.12.1.1)

pmxIfTable
OIDNameTypeAccess
.1IndexINTEGERR
.2SelftestENUMR
.3Layer1StateENUMRW
.4Layer1ModeENUMR
.5Layer1FramingENUMRW
.6Layer1LineCodeENUMRW
.7ChannelModeENUMRW
.8LoopbackModeENUMRW
.9ErrorsCounterR
.10PortModeENUMRW
.21LOSCounterR
.22NoFASCounterR
.23RemoteAlarmsCounterR
.24AlarmIndsCounterR
.25CRC4ErrorsCounterR
.26SlipPositiveCounterR
.27SlipNegativeCounterR

Index
Unique Index of the primary rate interface. The index

is similar to slotnumber * 1000 and is also refenced in 

the ifTable, the isdnIfTable and in the isdnStkTable

Selftest
The result of the initial selftest of the PMX module

If the result is not succesful, the module is disabled

successful(1)		All selftests succeeded;

acfa-failure(2)	failure with the module ACFA Chip

m32-failure(3)	failure with the module M32 Chip

mem-failure(4)	failure with the module memory
Enumerations:
  • successful (1)
  • acfa-failure (2)
  • m32-failure (3)
  • mem-failure (4)
Layer1State
The layer 1 state of the primary rate interface

active(F1)		active, framing and synchronisation

is o.k. This is the only state where

data-transmission is possible

remote-alarm(F2)	receipt of an RAI, remote alarm 

indication, from the remote side;

The remote-alarm is also known as

yellow alarm or distant alarm

no-signal(F3)		no signal is received, RAI will

be transmitted. NOS is also known

as red alarm .  

no-sync(F4)		signal is received but synchronistation

is not possible, RAI will be transmitted

The received signal may also consist

of contingous Ones

crc-error(F5)		signal and synchronisation are o.k. but

signal has heavy crc errors, RAI will 

be transmitted

power-on(F6)		initial state after power was   

switched on (transient)

resync(7)  		Setting Layer 1 State to resync can

be used to force resynchronisation

The Layer1states are also visible in the isdnIfTable, but

the state numbers are mapped to those of an BRI-Interface 
Enumerations:
  • active (1)
  • remote-alarm (2)
  • no-signal (3)
  • no-sync (4)
  • crc-error (5)
  • power-on (6)
  • resync (7)
Layer1Mode
In T1 and E1 mode the primary rate interface is working

with totaly different clock frequencies, framing and 

impedance. This depends on one of the jumpers on the 

PMX module. For correct operation all 5 jumpers must be 

in correct position. 

E1 is normaly used in Europe and is similar to 

PCM30, 30 channels, 2 Mbit/sec, Impedance 120 Ohm 

T1 is normaly used in USA and is similar to 

PCM24, 24 channels, 1.5 Mbit/sec, Impedance 100 Ohm

Enumerations:
  • e1 (1)
  • t1 (2)
Layer1Framing
In T1 and E1 mode the primary rate interface can work  

with totaly different framing types on layer 1. The 

framing type must match the configuration of the 

first connected point e.g. the exchange or the NT 

e1(1)		E1 - minimum mode, CCITT Recommendation G.704

(Table 4a)  

e1-crc(2)	E1 , crc mode, CCITT Recommendation G.704

(Table 4b)  

e1-mf(3)	E1 , CCITT Recommendation G.704 (Table 4a) 

with Timeslot 16 multiframing enabled

e1-mf-crc(4)	E1 , CCITT Recommendation G.704 (Table 4b) 

with Timeslot 16 multiframing enabled

t1-esf(5)	T1 , Extended SuperFrame mode DS1

t1-d4(6)	T1 , AT&T D4 format DS1

t1-framings can only be set when pmxIfLayer1Mode is t1

e1-framings can only be set when pmxIfLayer1Mode is e1

The default framing for t1 is t1-esf, the default framing 

for e1 is e1-crc

Modifications of the default values are usualy not required.

Exceptions are only known for sweden and france (use e1)

Enumerations:
  • e1 (1)
  • e1-mf (2)
  • e1-crc (3)
  • e1-mf-crc (4)
  • t1-esf (5)
  • t1-d4 (6)
Layer1LineCode
In T1 mode the primary rate interface is able

to work with different line codes. 

e1-hdb3(1)      High Density Bipolar 3 Level Coding

This is the only valid linecoding for E1

t1-b8zs(2)      Bipolar 8 Zero Substitution

B8ZS refers to the use of a specified  

pattern  of  normal  bits  and  bipolar 

violations which are used to replace a

sequence of eight zero bits

t1-ami(3)       Alternating Mark Inversion. 

AMI refers to a mode wherein no  zero  code

suppression  is  present  and the line encoding

does not solve the problem directly.   In  this

application, the higher layer must provide data

which meets or exceeds the  pulse  density  

requirements, such as inverting HDLC data.

t1-linecodes can only be set when pmxIfLayer1Mode is t1

e1-linecodes can only be set when pmxIfLayer1Mode is e1

The default linecode for t1 is t1-b8zs

Enumerations:
  • e1-hdb3 (1)
  • t1-b8zs (2)
  • t1-ami (3)
ChannelMode
In T1 and E1 mode the primary rate interface may work  

with different channel types. Usually every timeslot

is similar to one channel but it is also possible to 

bundle multiple timeslots to one channel with a higher 

bandwith. This channel bundeling is currently not 

supported by the switching equipment for dialup 

connections of any network-provider. But usage is 

possible with leased lines.

e1-standard(1)	1 D-channel 64 kbit, 30 B-channels 64kbit

bchannels are numbered from 1 to 15 and

from 16 to 31

e1-1tr6(2)	1 D-channel 64 kbit, 30 B-channels 64kbit

identical timeslotassignment as e1-standard

but bchannels are numbered from 1 to 30

e1-H0(3)	1 D-channel 64 kbit, 5 B-channels 384kbit

bchannels are numbered from 1 to 5 

e1-H12(4)	1 D-channel 64 kbit, 1 B-channel 1920kbit

e1-burst(5)	1 channel 1984kbit, channel number is 0 

e1-raw(6) 	1 channel 2048kbit, channel number is 0

e1-leased(7) 	31 B-channels 64kbit, numbered from 1 to 31

t1-standard(6) 1 D-channel 64 kbit, 23 B-channels 64kbit

bchannels are numbered from 1 to 23

t1-H0(7)	1 D-channel 64 kbit, 4 B-channels 384kbit

bchannels are numbered from 1 to 4

t1-H11(8)	1 D-channel 64 kbit, 1 B-channel 1472kbit

t1-burst(9)	1 channel 1536kbit, channel number is 0

t1-channelmodes can only be set when pmxIfLayer1Mode is t1

e1-channelmodes can only be set when pmxIfLayer1Mode is e1

Enumerations:
  • e1-standard (1)
  • e1-1tr6 (2)
  • e1-H0 (3)
  • e1-H12 (4)
  • e1-burst (5)
  • e1-raw (6)
  • e1-leased (7)
  • t1-standard (10)
  • t1-H0 (11)
  • t1-H11 (12)
  • t1-burst (13)
  • t1-raw (14)
  • t1-leased (15)
LoopbackMode
Loopback-Mode is only required for equipment test

no-loop(1)		do not loopanything, this is the 

correct mode for normal operation

full-loop(2)		loopback everything incl. the 

signaling channel

all-channels(3)	loopback all B and D-channels 

only-bchannels(4)	loopback only the B-channels 

The loops are usualy not reversible. Reboot is required

to regain normal operation mode.

Enumerations:
  • no-loop (1)
  • full-loop (2)
  • all-channels (3)
  • only-bchannels (4)
Errors
The measured PMX interface errors since startup
PortMode
PortMode switches the CM-PRI's 'Out'-port

normal(1)		'Out'-port is disabled, this

CM-PRI is connected to 'In'

go-thru(2)		'Out'-port is enabled, this

CM-PRI is disconnected.

go-thru-tst(3)		same as 'go-thru' but an internal

test loop is activated

Enumerations:
  • normal (1)
  • go-thru (2)
  • go-thru-tst (3)
LOS
Loss Of Signal conditions since startup
NoFAS
Loss Of Frame Alignment conditions since startup
RemoteAlarms
Remote Alarms received since startup
AlarmInds
Alarms received since startup
CRC4Errors
CRC4 errors detected since startup
SlipPositive
Positive Slip conditions detected since startup;

flags that the frequency of receive clock is less

than frequency of internal system clock
SlipNegative
Negative Slip conditions detected since startup;

flags that the frequency of receive clock is greater

than frequency of internal system clock


Copyright ©2003 by BinTec Access Networks GmbH