T1

RDTU3A Call Data Information

Notes

There are some cases when the RDTU will not receive requests from the central processor unit (CPU), such as the time waiting for wink signal. When the RDTU attempts to move to a non- receiving state, the RDTU sends commands to the CPU to stop sending requests. The CPU stops sending requests until the RDTU cancels the stop. “DDT1” indicates that the RDTU is in a non-receiving state.

Dial pulse digits are communicated using A/B bits, so the RDTU can detect and send out from the monitor port. DTMF digits cannot monitored because they pass through the speech path.

Indicators

When the conditions described in the “Timing” column of the table below occur, the information in the “Indication” column appears on-screen.

Table 8-8 RDTU3 Indications

Indication

Indication

Timing

Type

 

 

 

ALARM:YAON/OFF BAON/OFF FSLON/OFF

Occurs when the T1

 

line alarm state

 

 

Alarm

YA = Yellow Alarm

changes.

information

BA = Blue Alarm

When all Alarms are

 

FSL = Frame Sync Loss

OFF state, RDTU3A

 

gets frame sync.

 

 

 

 

 

 

UNIT MODE: FFMxx SCHxx TSxx RPDxxxx TPDxxxx ZCSxx

 

 

FFM = Frame format mode

 

 

01 = D4 mode 10 = ESF mode

 

 

SCH = Sync operation CHannel

 

 

01 = Primary CLK extraction channel

 

 

10 = Secondary CLK extraction channel

 

 

TS = Voice channel number

 

 

01 = 8 PCM ch 10 = 16 PCM ch 11 = 24 PCM ch

 

 

RPD = Receive digital PAD setting

If you change the card

 

0001/0010 = +3dB 0011 = 0dB 0100 = -3dB

in programming, the

 

above indication

 

0101 = -6dB 0110 = -9dB 0111 = -12dB

 

information displays.

 

_______1000 = -15dB

 

 

TPD = Transmit digital PAD

 

 

0001/0010 = +3dB 0011 = 0dB 0100 = -3dB

 

 

0101 = -6dB 0110 = -9dB 0111 = -12dB

 

 

1000 = -15dB

 

 

ZCS = Zero Code Suppression mode

 

 

01 = PZC (Not used) 10 = B8ZS

 

 

11 = AMI with ZCS

 

 

 

 

 

CH MODEx-y:Az Az Az Az Az Az

 

Channel Trunk

x-y = channel number 0-5/6-11/12-17/18-23

If you change the

Az = Channel mode

trunk type in

Type

A8 = CO Loop A9 = CO Ground

programming, the

Information

AA = TIE Immediate AB = TIE Wink

above data displays.

 

 

 

 

AC = DID Immediate AD = DID Wink

 

 

 

 

T1

Strata CTX I&M 06/04

8-11

Page 319
Image 319
Toshiba CTX28 manual Indicators, RDTU3 Indications Timing Type, Alarmyaon/Off Baon/Off Fslon/Off