Xantech MRC88M Application, Single Keypad CAT5 Connections, Multiple Keypad Connections

Page: 30 Model MRC88m / MRAUDIO8x8m

CONNECTIONS AT THE ZONE LOCATION (BASIC/ADVANCED/EXPANDED)

KEYPAD CONNECTIONS AND JUMPER SETTINGS

Single Keypad CAT5 Connections

1.Refer to Figure 10 for proper termination at the zone-end of the CAT5 cable.

2.Set Keypad Address jumper configuration on the rear of the keypad – Figure 5-(17)according to Table

1 below.

2.Connect the CAT5 cable from the MRC88m Controller/Amplifier into the RJ45 jack marked “Controller” on the rear of the MRC88m keypad.

Caution: Power voltage for the keypad is transmitted along this cable! Incorrect wiring on this cable can destroy the MRC Keypad! Be sure to test cable for proper connections before making connections.

Multiple Keypad Connections

1.For a second keypad in the same zone, terminate the CAT5 cable in the same way as shown in Figure 10.

2.Connect the CAT5 coming from the MRC88m Controller to the “CONTROLLER” jack on the Primary Keypad. Plug a CAT5 cable into the “EXPANSION” jack on the Primary Keypad and connect it to the “CONTROLLER” jack on the Secondary Keypad. Repeat for all keypads in zone (up to a total of 4 Keypads) Set the Address jumpers on the rear of the keypad – Figure 5-(17)according to Table 1 below.

Keypad Address Setting

Application	JP1	JP2
First (or Single) Keypad in Zone
(Primary Keypad connected	OFF	OFF
directly to MRC88m
Controller)
Second Keypad in Zone
(Connected to Primary	OFF	ON
keypads Expansion Port)
Third Keypad in Zone
(Connected to Second	ON	OFF
keypads Expansion Port)
Fourth Keypad in zone
(Connected to third keypads	ON	ON
Expansion Port)

Table 1 – MRC88m Keypad Address Settings

Zone Termination

The LAST keypad connected in the zone (Keypad with no other keypad plugged into its EXPANSION port) must have the Zone Termination Jumper installed – Figure 5-(18).

Sensor Enable

To disable the Keypads on-board IR Receiver, remove the Sensor Enable jumper on the rear of the keypad – Figure 5-(19).

External IR Terminal Block

To conveniently add other Xantech IR Receivers or Keypads (SMARTPAD or WATERPAD) in conjunction with the MRC88m Keypads, you may wire 18AWG-24AWG 4-conductor wire, directly to the terminal block on the rear of the Keypad – Figure 5-(23). A 4-conductor screw-type removable connector is provided to safely wire the +12v, STATUS, IR IN and GND to the rear of the Keypad. This might be useful when adding a Plasma Friendly (or other) IR Receiver (490-90 etc.) or adding a sub- zone keypad either outdoors or in a bathroom (WATERPAD Keypad).

© 2009 Xantech Corporation