SRX650 Services Gateway Quad T1/E1 GPIM Overview
A Gigabit-Backplane Pluggable Interface Module (GPIM) is a network interface card (NIC) that installs in the front slots of the services gateway to provide physical connections to a LAN or a WAN. The GPIM receives incoming packets from a network and transmits outgoing packets to a network.
The Quad T1/E1 GPIM provides the physical connection to T1 or E1 network media types and also performs T1 or E1 framing and line-speed signaling.
Caution: GPIMs are not Online Insertion and Removal (OIR) capable. You must power off the services gateway before removing or inserting a GPIM. Ensure that the GPIM is installed in the appropriate GPIM slot before powering on the services gateway.
Figure 1 shows the Quad T1/E1 GPIM:
Figure 1: Quad T1/E1 GPIM
The Quad T1/E1 GPIM provides the following common key features for both T1 and E1 modes:
- HDLC operating mode supports 56 Kbps and 64 Kbps
- Independent internal and external clocking option
- Alarm reporting with 24-hour history
- MTU supports 9K bytes
The Quad T1/E1 GPIM provides the features specific to T1 or E1 modes listed in Table 1.
Table 1: Quad T1/E1 GPIM Specific T1 or E1 Features