Installation manual

ESI Communications Servers Hardware Installation Manual External connections
I.4
External paging device connection
ESI-1000 and ESI-600, and ESI-50
On either of these systems, a dry-contact overhead-paging device can be connected
through the RJ-11 OH Paging connector, which is located on the front of the main board
faceplate just below the NSP’s Ethernet connector. Although this is a six-pin connector, only two pairs are
needed between the paging device and the connector:
• To pin-out the connector for normally open operation, connect the audio wires to pins 3 and 4 and the
control pair to pins 1 and 2.
• To pin-out the connector for normally closed operation, connect the audio wires to pins 3 and 4 and the
control pair to pins 5 and 6.
ESI-200 and ESI-100
A dry contact overhead-paging device can be connected to the system through the first port card's 66 block.
1
The overhead paging port is fixed (located on the main board) as code 599 for programming purposes and
user access. (See “Worksheet” wiring charts, page I.23.)
Audio connection
The audio pair is connected to the 66 block at terminal 33 and 34. The pair’s impedance is 600 ohms.
Note: The port doesn’t support talk-back paging (which requires a CO port), nor does it support CO ring
through the port.
Dry-contact control
The manner in which the dry-contact pair is punched down on the 66 block sets the pair as normally open
(sending a page to the port will close the contacts) or normally closed (sending a page to the port will open
the contacts).
Connect the dry-contact pair of the device to the ESI Communications Server as follows:
• Terminals 35 and 36 to provide normally open operation;
or
• Terminals 36 and 38 to provide normally closed operation.
The port can be used with zone paging units.
Note: ESI doesn’t recommend the use of paging contacts for door-unlocking mechanisms.
Programming
To access the overhead paging port, assign feature code 5 9 9 to a programmable feature key.
Amphenol cable connections
Connect a standard 66 or 110 block to each digital port card by using a male 50-pin amphenol cable to each port
card female connector located on the cabinet. On the ESI-100 or ESI-50, the connector closest to the wall is the
first card; on other ESI Communications Servers, the connector in the leftmost slot is the first card.
1
If an IVC is installed in slot 1 on the ESI-1000, ESI-600, or ESI-200, the audio connection and dry-contact control connect via the second port card.
(On an ESI-200, a non-IVC card must be in slot 1 or 2. On an ESI-100, a non-IVC card must be in slot 1. On an ESI-50, an IVC is built-in and
considered to be port card 2.)