IPECS Release 5
Hardware Description & Installation
Issue 5.0
17
2.1.8 PRIM (PRI gateway Module)
The PRIM module provides one (1) PRI interface. This interface supports 30 PCM bearer and 2
signaling channels for PRI. The PRIM gateway is comprised of two boards, a main board and a
daughter board, the PCEU.
The PRIM includes a 10/100 Base-T Ethernet interface as well as packet voice processing
functions. The Ethernet port incorporates auto MDI, MDIX switching, therefore, both straight and
cross cables can be used.
As shown in Figure 2.1.8-1, the front panel of the PRIM has:
•
Power jack for the AC/DC adapter; see section 2.1.15 AD/DC
adapter –G-,
•
Power status LED,
•
Normal/Service switch – In Service mode, circuits in use are
busy as they return to idle,
•
RJ-45 Female LAN connector with Speed and Link/Activity
LEDs,
•
Five (5) LEDs,
•
DB-9 RS-232 connector,
•
Reset
Switch.
On the rear panel, the PRIM has:
•
One (1) RJ-45 female connector,
•
Ground
Lug,
•
Fifty (50)-pin back plane connector.
Figure 2.1.8-1 PRIM Front & Rear Panels
