Installing and wiring telephones and trunks
78 Installing and Connecting the MDF and Telephones
Figure 38: Digital Tie Trunk wiring
DS1 tie trunk example
Digital Signal Level 1 (DS1) tie trunks provide a 1.544 Mbps (T1) or 2.048 Mbps (E1) digital data
service between two collocated configurations or between the configuration and a data network.
See these examples:
● Collocated DS1 interface trunks on page 78
● DS1 interface trunks using T1 channel service unit on page 79
For cable descriptions, see
● DS1 cables on page 80
● Pinout of C6F cable on page 80
Collocated DS1 interface trunks
Two TN464HP DS1 Interface circuit packs can be in collocated configurations. A DS1 Interface
circuit pack in one configuration can be connected to a DS1 in another configuration. A C6D
cable can be used if the distance is less than 50 feet (15.2 meters). If the distance is between
50 feet (15 meters) and 1,310 feet (399 meters), use a C6E cable.
Note:
Note: The maximum distance between cabinets is 1,310 feet (399 meters).
Figure notes:
1. External Trunk
2. Digital Trunk Circuit Pack
3. LO
4. LO (Balanced Output Pair)
5. LI
6. LI (Balanced Input Pair)
