ISDN
ISDN PRI with TLU76/11
Color coding for TLU76 with cable TSR4820211/xxxx
see item TLU76 and TLU77 cable structure.
Figure 1. Digital External Lines 120 ohm Pair Cable, TLU76/11
- /14
Digital external lines with TLU79 and an NT1-box, Network Terminal-box.
Color coding for TLU79 with cable TSR491414/xxx
see item ELU26 and TLU79 cable structure.
Figure 2. 2-Wire ISDN with TLU79 and an NT1-Box (8 pairs)
Note: Make sure that each individual’s receive (Rx) and transmit
(Tx) are properly connected between the TLU79 board and the NT1-box.
Necessary corrections between the individuals can preferably be
performed in the MDF.
Digital external line with TLU79 as a tie line
Color coding for TLU79 with cable TSR491414/xxx see item ELU26 and TLU79 cable structure.
Figure 3. Connecting TLU79 to TLU79 Through MDF (8 pairs)
↑