STARPLUS Triad 1 Product Description Manual page 363

Peripheral Boards 11-15
Chapter 11 - Triad 3 System Configuration
The card ejector tabs are color coded white.
The PRI board can only be installed in the Basic Cabinet (BKSU) Slots 1-8. A
maximum of six PRI boards can be installed in the system (138 B channels).
The PRI board only supports the National ISDN 2 (NI-2) standards.
Vodavi has successfully integrated its PRI ISDN with the Lucent 5 ESS, Siemens,
Stromburg Carlson, and the DMS100 Central Offices. Vodavi ISDN should work
with all Central Office switches, but this has not been verified. Therefore, some
delays in service may be experienced.
Figure 11-9: PRIB (PRI Trunk Board)