RAD Data comm Modular Access Device with Integrated Router, E1/T1 operation manual

FCD-IPMInstallation and Operation Manual Chapter 5 Setup Menu

FCD-IPM (T1 with Sub Link)
Router/Bridge	Link1
	T1
	Service
	Sub Link T1
	Interface
	T1 Service
	or PABX

Analog Loopback

Front End

Figure 5-45. Remote Analog Loopback for T1 and Sub T1 Links

•Main Link Remote Digital Loopback – In this mode FCD-IPM performs a digital loopback and transmits back the signal that was received from the T1 line. The loopback is shown in Figure 5-46.

FCD-IPM

	Link1 T1 Interface
	T1
	Service
Loopback	Digital
	Front End

Figure 5-46. Remote Digital Loopback

•Sublink Remote Digital Loopback (for FCD-IPM with a sublink) – In this mode

FCD-IPM performs a digital loopback and transmits back the signal that was received from the sub T1 line. The loopback is shown in Figure 5-47.

FCD-IPM (T1 with Sub Link)
Router/Bridge	Link1
		T1
		Service
	Sub Link T1
	Interface
		T1 Service
		or PABX
	Digital	Loopback
	Front End

Figure 5-47. Remote Digital Loopback for T1 and Sub T1 Links

Interface Parameters Menu 5-39