User's Manual Part 1

Features - 9 -
®
Affinity LBD-200C-N1 Transmitter
Product Manual
The transmitter uses self-contained ambient forced air-cooling (front to back airflow). All fans
are internal to the chassis. Refer to the Cabinet Air Conditioning
section of this manual for
additional details of the LBD-200C-N1 transmitter cooling and environmental control systems.
The transmitter system including all ancillary equipment is housed in a Nema 3R rated
enclosure with approximate dimensions: 74” H x 44” W x 44” D. This self-contained unit features
eyelets for lifting the entire assembly during installation. The base has mounting provisions for
mechanical and electrical attachments to building structures. Equipment access is achieved
through front and rear opening doors fitted with locks and intrusion alarms with remote
signaling. Internal enclosure lights illuminate when any door is opened during maintenance. A
smoke/fire detector with remote signaling is utilized to provide the earliest warning of
catastrophic failure caused by a natural occurrence or other means.
Located inside the enclosure is an EIA standard 19” rail structure system used for rack
mounting each sub system contained in the Affinity® configuration.
The AC distribution system is comprised of: 120/230VAC surge suppression with alarms, two
230VAC outlets, and two 120VAC outlets with separate circuit protection. Four 230VAC utility
outlets are provided along with four UPS protected outlets located along the rear corner of the
enclosure. These outlets are intended to connect transmitter ancillary equipment. An external
disconnect box allows connection of a portable generator. An AC hour-meter will record the
operational hours of the equipment.
A UPS is employed to keep critical subsystems running in instances of temporary AC power
loss. The 230VAC UPS output is capable of 700VA/490W. Storage for the UPS is via two
24VDC extended battery modules capable of providing an output of approximately 210 Watts for
400 Minutes (6.9 Hrs). This power is intentionally distributed to the site management system,
satellite receiver, and DVB-T/H RF exciter to enable status communications from the site, back
to the operations center, to continue while normal operating site power is absent. Having the
exciter and satellite receiver powered up also minimizes transmitter restart times once normal
site power has been restored.