Panasonic KX-TD500 Installation Manual page 52

System Outline
ERMT Card (KX-TD50197) Functions
1.
Modem (V.34 MODEM) for remote administration.
ERMT Card (KX-TD50197) Operation
1.
The LED indicator on the ERMT card lights when the system reset or ERMT local reset
occurs.
OHCA Card (KX-T96136) Functions
OHCA (Off-Hook Call Announcement) card
This card is mounted on HLC card (KX-T96170) or PLC card (KX-T96172).
This card includes 2 OHCA circuits.
Allows an extension user to intrude through the speaker into another extension that is in
conversation using the handset.
This feature is available only for the following APT: KX-T7130.
DPH Card (KX-T96161) Functions
1.
Doorphone interface (4 circuits/card).
4 doorphones can be connected using a modular connector.
2.
Door opener interface (4 circuits/card).
DPH card has 4 relays for door opener. The relay opens for doorlock, closes for door
release. It also opens in the case of power failure.
Door Opener Current Limit: 24 V DC/30 V AC, 1 A max.
DPH Card (KX-T96161) Operation
1.
Terminal plate on the DPH card has 8 terminals. 2 leads from door opener are directly
connected to two of 8 terminals.
Caller ID Card (KX-TD193) Functions
1.
This card is mounted on ELCOT card for receiving Caller ID information sent from the
Central Office.
Four CO Lines are available for Caller ID service with one Caller ID card.
TSW-CONF Card Functions
1.
This card is mounted on TSW card for conference trunk expansion.
3-party x 64 conference circuits.
DOHCA Card Functions
1.
This card is mounted on TSW card for OHCA feature for DPT. OHCA feature is available
for the following DPTs: KX-T7235, KX-T7436
52 Installation Manual