Extron electronic 450 Plus, MAV Plus manual 9 - Daisy-chaining BMEs video BME shown, From BME

g BME COMM interconnect ports — If the matrix switcher system consists of more than one BME, the BMEs must be connected together in a daisy chain using Extron-supplied RJ-45 cables.

Connect the first daisy chain from BME 0’s BME Comm Out connector to the nearest BME’s BME Comm In connector (figure 2-9). In a rack where BMEs are arranged so that their physical location matches the BME address numbering, this would be BME 1. But since not all systems are configured alike, call this module BME n.

62

61

62 63

BME

EXT

BME	LAN
	S
RES
ADD
4	K
	LIN
	ACT

OUT

REMOTE

Tx

Rx

RESET

EXT	BME COMM
SYNC
	Tx
	Rx
	IN	OUT
11	7

ADDRESS LAN	Tx	REMOTE	From BME
BME
-	Rx		8
4
+
ACT LINK	RESET

To BME

6 9 10

Figure 2-9 — Daisy-chaining BMEs (video BME shown)

Connect the next RJ-45 cable from BME n’s BME Comm Out connector to the nearest unconnected BME’s (BME n+1’s) BME Comm In connector.

Continue connecting RJ-45 cables from each daisy-chained module’s BME Comm Out connector to the next module’s BME Comm In connector until all modules are included in the chain. When all of the BMEs are connected, each of the BMEs in the system is connected to at least one other BME via the BME Comm connectors.

CrossPoint 450 Plus and MAV Plus Switchers • Installation 2-7