Function

Optional 3-slot base card for mounting a maximum of 3 option cards from the following:

•	DPH4 card
•	EIO4 card
•	ECHO16 card
•	MSG4 card
•	ESVM4 card

Accessories and User-supplied Items

Accessories (included): none

User-supplied (not included): none

WARNING
	A LITHIUM BATTERY IS USED IN OPB3 CARD. THERE IS A RISK OF EXPLOSION IF THE BATTERY IS REPLACED WITH THE INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE MANUFACTURER'S INSTRUCTIONS.

LED Indications

Indication

Color

Description

CARD STATUS

Green/Red

Card status indication

•	OFF: Power Off
•	Green ON: Normal (all ports are idle)
•	Green Flashing (60 times per minute): Normal (a port is in use)
•	Red ON: Fault (includes reset)
•	Red Flashing (60 times per minute): Out of Service

Function

4-port doorphone card for 4 doorphones and 4 door openers. To be mounted on the OPB3 card.

Accessories and User-supplied Items

Accessories (included): Screws × 3, 10-pin terminal block × 1, 8-pin terminal block × 1

User-supplied (not included): Copper wire

Note
	For details about connection to doorphones and door openers, refer to "3.11.1 Connection of Doorphones, Door Openers, External Sensors, and External Relays".

Pin Assignments

8-pin Terminal Block

No.

Signal Name

Function

1

DP4

Doorphone 4 transmit

2

com4

Doorphone 4 receive

3

DP3

Doorphone 3 transmit

4

com3

Doorphone 3 receive

5

DP2

Doorphone 2 transmit

6

com2

Doorphone 2 receive

7

DP1

Doorphone 1 transmit

8

com1

Doorphone 1 receive

10-pin Terminal Block

No.

Signal Name

Function

1-2

Reserved

–

3

OP4b

Door opener 4

4

OP4a

Door opener 4 com

5

OP3b

Door opener 3

6

OP3a

Door opener 3 com

7

OP2b

Door opener 2

8

OP2a

Door opener 2 com

9

OP1b

Door opener 1

10

OP1a

Door opener 1 com

Function

4-port external input/output card. To be mounted on the OPB3 card.

Accessories and User-supplied Items

Accessories (included): Screws × 3, 10-pin terminal block × 1, 8-pin terminal block × 1

User-supplied (not included): Copper wire

Note
	For details about connection to external sensors and external relays, refer to "3.11.1 Connection of Doorphones, Door Openers, External Sensors, and External Relays".

Pin Assignments

8-pin Terminal Block

No.

Signal Name

Function

1

C4b

Control 4

2

C4a

Control 4 com

3

C3b

Control 3

4

C3a

Control 3 com

5

C2b

Control 2

6

C2a

Control 2 com

7

C1b

Control 1

8

C1a

Control 1 com

10-pin Terminal Block

No.

Signal Name

Function

1-2

Reserved

–

3

OP4b

Opener 4

4

OP4a

Opener 4 com

5

OP3b

Opener 3

6

OP3a

Opener 3 com

7

OP2b

Opener 2

8

OP2a

Opener 2 com

9

OP1b

Opener 1

10

OP1a

Opener 1 com

External Sensor

Power to the external sensor is provided from the EIO4 card and must be grounded through the EIO4 card as indicated in the diagram below. A pair of "sensor" and "common" lines are connected to the EIO4 card for each external sensor. The PBX detects input from the sensor when the signal is under 100 W.

Connection Diagram

External Relay

Current Limit: 24 V DC/30 V AC, 1 A maximum

Function

16-channel card for echo cancellation during conferences. To be mounted on the OPB3 card.

Accessories and User-supplied Items

Accessories (included): Screws × 3

User-supplied (not included): none

Note
	To establish a conference call involving 6 to 8 parties, install an ECHO16 card and enable echo cancellation for conferences using the Maintenance Console. For details, refer to "Echo Cancel—Conference" in "2.9.18 [2-9] System Options" of the PC Programming Manual.

Function

4-channel message card. To be mounted on the OPB3 card.

Accessories and User-supplied Items

Accessories (included): Screws × 3

User-supplied (not included): none

Function

4-channel simplified voice message card for Simplified Voice Message feature. Also supports MSG card features. To be mounted on the OPB3 card.

Accessories and User-supplied Items

Accessories (included): Screws × 3

User-supplied (not included): none

CAUTION
	When installing/uninstalling an ESVM card, be careful not to damage the chips around the connection parts. Doing so may cause severe damage to the ESVM card.

Note
	When using an ESVM card for the SVM feature, it must be mounted on sub-slot 3 (highest slot) of the OPB3 card.