Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?


Quad CT1/E1 GPIM Overview


A Gigabit-Backplane Physical Interface Module (GPIM) is a network interface card (NIC) that installs in the front slots of the SRX550 or SRX650 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 CT1/E1 GPIM does not support channelization.

The Quad CT1/E1 GPIM provides the physical connection to T1 or E1 network media types and also performs T1 or E1 framing and line-speed signaling.


Only the SRX650 Services Gateway supports hot-swappable functionality for GPIMs. The SRX550 Services Gateway does not support hot-swappable functionality for GPIMs.

Figure 1 shows the Quad CT1/E1 GPIM.

Figure 1: Quad CT1/E1 GPIM
Quad CT1/E1 GPIM