3Com MSR 20, MSR 30, MSR 50 manual MIM-4BSE Module, Description of the LEDs on the MIM-1CT3 panel

100CHAPTER 3: MULTIFUNCTIONAL INTERFACE MODULES

Table 59 Description of the LEDs on the MIM-1CT3 panel

LED	Description
LINK/ACT	ON means the carrier signal has been
	received.
	OFF means no carrier signal has been
	received.
	Blinking means data is being
	transmitted or/and received.
LP/AL	ON means the interface is in a
	loopback.
	Blinking means an AIS, LFA, or RAI
	alarm signal is present.
	OFF means no loopback or alarm is
	present.
Note:

AIS = Alarm indication signal; LFA = loss of frame alignment; RAI = Remote alarm indication

Interface Cable MIM-1CT3 and MIM-1CE3 use the same type of interface cables and make connection in the same way. For details, see “MIM-1CE3 Module” on page 97.

n E3/T3 cables are not provided together with MIM-1CT3 and shall be prepared by the user.

MIM-4BSE Module

Introduction MIM-4BSE, the four-port ISDN BRI interface module, transmits, receives, and processes four channels of ISDN BRI S/T data traffic on ISDN BRI S/T interfaces.

The MIM-4BSE differs from the 4BS only in the way they set matched resistance for an ISDN BRI S/T interface: the 4BS uses jumpers while the MIM-4BSE uses DIP switches.

The MIM-4BSE can work in dial mode or leased line mode.

Interface Attributes The following table describes the interface attributes of the MIM-4BSE.

Table 60 Interface attributes of the MIM-4BSE

Attribute	Description
Connector	RJ-45
Number of connectors	4
Cable	ISDN S/T cable
Protocol & standard	ITU-T I.430, Q.921, Q.931
Operating mode	ISDN dial-up
	ISDN leased line