The 8-Port Serial Gigabit-Backplane Physical Interface Module (GPIM) is a network
interface card (NIC) that installs in the front slots of the SRX650 and SRX550 Services
Gateways to provide physical connections to a WAN. It can be plugged into all the GPIM
slots of SRX650 and SRX550 Services Gateways. After you install the GPIM in the services
gateway, you configure a network interface on the GPIM. It enhances port density and
provides flexible support for universal serial ports including a wide array of interface
options such as synchronous support.

NOTE:

Only SRX650 Services Gateway supports hot-swappable functionality

for GPIMs.

All the ports of the 8-Port Serial GPIM are connected to two dual stacked 136-pin VHDCI
connectors. Custom cables are used to connect the VHDCI connectors to the data terminal
equipment (DTE) or the data circuit-terminating equipment (DCE). Different cables are
required to support different protocols. The protocols that a cable supports are identified
by the cable ID. The cables are labeled with a letter (refers to the cable type) and four
digits (unique serial numbers for the cables).

Figure 29: 8-Port Serial GPIM Front Panel

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