NEC DSX40 Hardware Manual - Page 55

Optional Equipment Installing a DSX Analog Door Box on a Built-In Door Box Port Installing a DSX Analog Door Box on a Built-In Door Box Port Connecting a DSX Analog Door Box to a Built-In Door Box Port Do not connect a DSX Analog Door Box to a digital station port. The DSX Analog Door Box (P/N 922450) is a self-contained Intercom unit typically used to monitor an entrance door. A visitor at the door can press the DSX Analog Door Box call button (like a door bell). The door box then sends chime tones to all extensions programmed to receive chimes. To answer the chime, the called extension user just lifts the handset. This lets the extension user talk to the visitor at the door box. You can connect up to 2 DSX Analog Door Boxes to your system, at station ports 25 (extension 324) and 26 (extension 325). Each DSX Analog Door Box also has an associated control relay. You can use this relay to release an electric strike on the entrance door. After answering the Door Box chimes, the extension user can press FLASH or a soft key to enable the DSX Analog Door Box's relay, which in turn unlocks the door. Relay Contact Specifications Important! Be sure the devices connected to the system's relay contacts are compatible with the following specifications. Contact Configuration: Normally Open Maximum Load: 0.5A @ 120 VAC 1A @ 24 VDC Maximum Initial Contact Resistance 100 mOhms The Analog Door Box is a weather-tight unit, with an operating temperature range of -20 to 60 degrees C (-4 to 140 degrees F) and a relative humidity range of 10-95%, non-condensing. To connect to the built-in DSX-40 analog door box ports and relays: 1. Using Figure 30: Connecting to the Built-In Analog Door Box Ports (page 50) as a guide, on Station Block 2 punch down the Installation Cable in standard color code-order. 2. Plug the appropriate installation cable plug into jack DOOR 1-2 on the Main Equipment Cabinet. 3. Install a modular jack for each relay and optionally for each door box within 6 feet of each door box location. (For the next two steps, leaving a service loop in your station cable will make adds, moves, and changes easier.) 4. For each relay: - Run one-pair 24 AWG station cable from the station block to the associated modular jack. - Terminate the station cable WHT/BLU - BLU/WHT leads to the RED and GRN lugs in the modu- lar jack. 5. For each door box: - Run one-pair 24 AWG station cable from the station block directly to the door box terminals. OR - Run one-pair 24 AWG station cable from the station block to the associated modular jack. - Then, terminate the station cable WHT/BLU - BLU/WHT leads to the RED and GRN lugs in the modular jack. 6. Install bridging clips as required. 7. Connect to the door boxes and relays as shown in Figure 30: Connecting to the Built-In Analog Door Box Ports (page 50). 8. Refer to the Door Box feature in the DSX Software Manual for programming details. DSX-40 Hardware Manual Optional Equipment ◆ 49