E1/T1 - WAN line protocol

Just note:

WAN protocol has Voice CAS, MFC/R2, PIR, ATM, Frame Relay, X.25, HDLC, PPP, SS7, Transparent bit-stream, BSC. Next protocol’s layer have IP/IPX over Frame Relay/ PPP/ HDLC/ X.25, X.25 over Frame Relay (Annex G), BSC over X.25 (DMT and TCOP), SNA over X.25, PPPoE, PPPoA, IP over ATM.

E1/T1/J1 signal status

  • ALOSV: Loss of Signal alarm
  • LOS: Receive Loss of Signal
  • ALTLOS: Alternate loss of Signal Status
  • OOF: Out of Frame
  • RED: Telco Red Alarm condition
  • AIS: Alarm Indication Signal
  • OOSMFV: Loss of Signaling Multiframe
  • OOCMFV: Loss of CRC Multiframe
  • OOOFV: Out of Off-Line Frame
  • RAIV: Receive Loss of Signal
  • YEL: Receive Telco Yellow Alarm


RJ 45 E1/T1 Pinouts
port A

1: RTIP 2: RRING 4: TTIP 5: TRING
port B
3: RTIP 6: RRING 7: TTIP 8: TRING


To cross cable or back to back cable, you can do it by swap between RTIP, RRING and TTIP, TRING check
E1/T1 cross cable and How to cross lan cable and E1/T1/J1 cable or ss7box user guide (tapping line).

Comments

Popular posts from this blog

Wowza 4.0.1 (Wowza Streaming Engine) Released!

WebRTC for Real-Time Communications