NWP_Query Object ( [query] => Array ( [post_type] => kb [post__not_in] => Array ( [0] => 37351 ) [tax_query] => Array ( [0] => Array ( [taxonomy] => kbtopic [field] => slug [terms] => gt-series ) ) [posts_per_page] => 4 [orderby] => rand ) [query_vars] => Array ( [post_type] => kb [post__not_in] => Array ( [0] => 37351 ) [tax_query] => Array ( [0] => Array ( [taxonomy] => kbtopic [field] => slug [terms] => gt-series ) ) [posts_per_page] => 4 [orderby] => meta_value_num menu_order [error] => [m] => [p] => 0 [post_parent] => [subpost] => [subpost_id] => [attachment] => [attachment_id] => 0 [name] => [pagename] => [page_id] => 0 [second] => [minute] => [hour] => [day] => 0 [monthnum] => 0 [year] => 0 [w] => 0 [category_name] => [tag] => [cat] => [tag_id] => [author] => [author_name] => [feed] => [tb] => [paged] => 0 [meta_key] => [meta_value] => [preview] => [s] => [sentence] => [title] => [fields] => [menu_order] => [embed] => [category__in] => Array ( ) [category__not_in] => Array ( ) [category__and] => Array ( ) [post__in] => Array ( ) [post_name__in] => Array ( ) [tag__in] => Array ( ) [tag__not_in] => Array ( ) [tag__and] => Array ( ) [tag_slug__in] => Array ( ) [tag_slug__and] => Array ( ) [post_parent__in] => Array ( ) [post_parent__not_in] => Array ( ) [author__in] => Array ( ) [author__not_in] => Array ( ) [search_columns] => Array ( ) [meta_query] => Array ( [relation] => OR [0] => Array ( [key] => mkb_tax_order_5713 [compare] => EXISTS ) [1] => Array ( [key] => mkb_tax_order_5713 [compare] => NOT EXISTS ) ) [order] => ASC [ignore_sticky_posts] => [suppress_filters] => [cache_results] => 1 [update_post_term_cache] => 1 [update_menu_item_cache] => [lazy_load_term_meta] => 1 [update_post_meta_cache] => 1 [nopaging] => [comments_per_page] => 50 [no_found_rows] => [taxonomy] => kbtopic [term] => gt-series ) [tax_query] => WP_Tax_Query Object ( [queries] => Array ( [0] => Array ( [taxonomy] => kbtopic [terms] => Array ( [0] => gt-series ) [field] => slug [operator] => IN [include_children] => 1 ) ) [relation] => AND [table_aliases:protected] => Array ( [0] => wp_term_relationships ) [queried_terms] => Array ( [kbtopic] => Array ( [terms] => Array ( [0] => gt-series ) [field] => slug ) ) [primary_table] => wp_posts [primary_id_column] => ID ) [meta_query] => WP_Meta_Query Object ( [queries] => Array ( [0] => Array ( [key] => mkb_tax_order_5713 [compare] => EXISTS ) [1] => Array ( [key] => mkb_tax_order_5713 [compare] => NOT EXISTS ) [relation] => OR ) [relation] => OR [meta_table] => wp_postmeta [meta_id_column] => post_id [primary_table] => wp_posts [primary_id_column] => ID [table_aliases:protected] => Array ( [0] => wp_postmeta [1] => mt1 ) [clauses:protected] => Array ( [wp_postmeta] => Array ( [key] => mkb_tax_order_5713 [compare] => EXISTS [compare_key] => = [alias] => wp_postmeta [cast] => CHAR ) [mt1] => Array ( [key] => mkb_tax_order_5713 [compare] => NOT EXISTS [compare_key] => = [alias] => mt1 [cast] => CHAR ) ) [has_or_relation:protected] => 1 ) [date_query] => [queried_object] => WP_Term Object ( [term_id] => 5713 [name] => GT Series [slug] => gt-series [term_group] => 0 [term_taxonomy_id] => 5713 [taxonomy] => kbtopic [description] => [parent] => 0 [count] => 44 [filter] => raw [term_order] => 5 ) [queried_object_id] => 5713 [request] => SELECT SQL_CALC_FOUND_ROWS wp_posts.ID FROM wp_posts LEFT JOIN wp_term_relationships ON (wp_posts.ID = wp_term_relationships.object_id) LEFT JOIN wp_postmeta ON ( wp_posts.ID = wp_postmeta.post_id ) LEFT JOIN wp_postmeta AS mt1 ON ( wp_posts.ID = mt1.post_id AND mt1.meta_key = 'mkb_tax_order_5713' ) WHERE 1=1 AND wp_posts.ID NOT IN (37351) AND ( wp_term_relationships.term_taxonomy_id IN (5713,5714,5715,5716,5717,5754,5770) ) AND ( wp_postmeta.meta_key = 'mkb_tax_order_5713' OR mt1.post_id IS NULL ) AND ((wp_posts.post_type = 'kb' AND (wp_posts.post_status = 'publish' OR wp_posts.post_status = 'acf-disabled'))) GROUP BY wp_posts.ID ORDER BY wp_postmeta.meta_value+0 ASC, wp_posts.menu_order ASC LIMIT 0, 4 [posts] => Array ( [0] => WP_Post Object ( [ID] => 37359 [post_author] => 18 [post_date] => 2021-11-17 19:00:33 [post_date_gmt] => 2021-11-18 03:00:33 [post_content] =>

Line Drawing

Specifications

Power Source

24V DC, supplied from PS-2420UL

Power Consumption

Max. 0.9A

Capacity

Maximum 48 tenant stations per (25 per trunk)

Wire

2-conductor 18AWG, PE insulation

Wiring Distance

GT-BC to furthest tenant station: 980' GT-BC to PS-2420UL: 33' [mkb-info]Distances are calculated using 20AWG or 18AWG wire.[/mkb-info]

Mounting

Surface wall mount or DIN rail (W-DIN11)

Operating Temperature

0~40℃(32~104°F)

Dimensions

4-¼” H x 4-¹³⁄₁₆” W x 2-⅜” D

Weight

Approx. 0.99 lbs (450g) [post_title] => GT-BC Technical Specification [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => open [post_password] => [post_name] => gt-bc-technical-specification [to_ping] => [pinged] => [post_modified] => 2025-04-10 11:31:52 [post_modified_gmt] => 2025-04-10 18:31:52 [post_content_filtered] => [post_parent] => 0 [guid] => https://aiphone.local/kb/gt-bc-technical-specification/ [menu_order] => 0 [post_type] => kb [post_mime_type] => [comment_count] => 0 [filter] => raw ) [1] => WP_Post Object ( [ID] => 37049 [post_author] => 18 [post_date] => 2021-08-14 20:50:44 [post_date_gmt] => 2021-08-15 03:50:44 [post_content] =>

Line Drawing

Specifications

Power Source

24V DC, use specified number of PS-2420ULs per system configuration

Communication

Hands-free

Capacity

Max. 16 entrance stations per system Max. 4 video guard stations per system Max. 500 tenant stations per system Max. 4 tenant stations per unit

Wire

Two sets of 2-conductor, PE insulation (two common buses for audio and video)
  • Aiphone #872002, 2-conductor PE insulated, non-shielded, 20AWG (audio)
  • Aiphone #871802, 2-conductor PE insulated, non-shielded, 18AWG (video)

Wiring Distance

GT-BC to farthest entrance station: 980' GT-BC to farthest tenant station: 980' GT-VBC to farthest entrance station: 980' GT-VBC to farthest tenant station: 500'

Mounting

Flush-mount: Use GF-3B back box Surface-mount: Use SBX-GTDMB surface-mount box

Operating Temperature

-22° ~ 140°F (-30° ~ 60°C)

Dimensions

12-⅝" H x 5-⅞" W

Weight

Approx. 2.64 lbs (1.2kg) [post_title] => GT-DMB-N Technical Specifications [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => open [post_password] => [post_name] => gt-dmb-n-spec-sheet [to_ping] => [pinged] => [post_modified] => 2025-03-13 10:26:23 [post_modified_gmt] => 2025-03-13 17:26:23 [post_content_filtered] => [post_parent] => 0 [guid] => https://aiphone.local/kb/gt-dmb-n-spec-sheet/ [menu_order] => 0 [post_type] => kb [post_mime_type] => [comment_count] => 0 [filter] => raw ) [2] => WP_Post Object ( [ID] => 37054 [post_author] => 18 [post_date] => 2021-08-14 21:02:45 [post_date_gmt] => 2021-08-15 04:02:45 [post_content] =>

Line Drawing

Specifications

Power Source

24V DC, PS-2420UL Standby 75mA, Maximum 125mA

Wire

2-conductor, PE insulation CAT5e/6

Wiring Distance

GT-MCX to power supply: 16' GT-MCX to distribution point: 165' GT-MCX to GT-VBC 165' GT-MCX to GT-BC: 165' GT-MCX to network switch: 330' [mkb-info]Distances are calculated using 20AWG or 18AWG wire.[/mkb-info]

Protocol

IPv4, IPv6, TCP, UDP, IGMP, MLD, DHCP, NTP, DNS

Encryption

TLS 1.2

Mounting

Din Rail (supplied)

Operating Temperature

32° ~ 104°F (0° ~ 40°C)

Dimensions

8-¼" W x 4-¼" H x 2-⅜" D

Weight

Approx. 0.75 lbs (340g) [post_title] => GT-MCX Technical Specifications [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => open [post_password] => [post_name] => gt-mcx [to_ping] => [pinged] => [post_modified] => 2025-04-10 11:33:39 [post_modified_gmt] => 2025-04-10 18:33:39 [post_content_filtered] => [post_parent] => 0 [guid] => https://aiphone.local/kb/gt-mcx/ [menu_order] => 0 [post_type] => kb [post_mime_type] => [comment_count] => 0 [filter] => raw ) [3] => WP_Post Object ( [ID] => 37058 [post_author] => 18 [post_date] => 2021-08-14 21:18:20 [post_date_gmt] => 2021-08-15 04:18:20 [post_content] =>

Line Drawing

Specifications

Power Source

24V DC, supplied from GT-BC

Communication

Hands-free or Push-to-talk

Capacity

Maximum 4 GT-1A tenant stations per resident location

Wire

2-conductor, PE insulation

Wiring Distance

GT-1A to distribution point: 980' GT-1A to doorbell: 33' GT-1A to emergency alarm switch: 49' GT-1A to GT-RY: 33' [mkb-info]Distances are calculated using 20AWG or 18AWG wire.[/mkb-info]

Mounting

Surface wall mount

Operating Temperature

32° ~ 104°F (0° ~ 40°C)

Dimensions

6-⅞” H x 4-¹⁵⁄₁₆” W x 1-¼” D

Weight

Approx. 0.70 lbs (330g) [post_title] => GT-1A Technical Specifications [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => open [post_password] => [post_name] => gt-1a-spec-sheet [to_ping] => [pinged] => [post_modified] => 2025-03-13 10:26:23 [post_modified_gmt] => 2025-03-13 17:26:23 [post_content_filtered] => [post_parent] => 0 [guid] => https://aiphone.local/kb/gt-1a-spec-sheet/ [menu_order] => 0 [post_type] => kb [post_mime_type] => [comment_count] => 0 [filter] => raw ) ) [post_count] => 4 [current_post] => -1 [before_loop] => 1 [in_the_loop] => [post] => WP_Post Object ( [ID] => 37359 [post_author] => 18 [post_date] => 2021-11-17 19:00:33 [post_date_gmt] => 2021-11-18 03:00:33 [post_content] =>

Line Drawing

Specifications

Power Source

24V DC, supplied from PS-2420UL

Power Consumption

Max. 0.9A

Capacity

Maximum 48 tenant stations per (25 per trunk)

Wire

2-conductor 18AWG, PE insulation

Wiring Distance

GT-BC to furthest tenant station: 980' GT-BC to PS-2420UL: 33' [mkb-info]Distances are calculated using 20AWG or 18AWG wire.[/mkb-info]

Mounting

Surface wall mount or DIN rail (W-DIN11)

Operating Temperature

0~40℃(32~104°F)

Dimensions

4-¼” H x 4-¹³⁄₁₆” W x 2-⅜” D

Weight

Approx. 0.99 lbs (450g) [post_title] => GT-BC Technical Specification [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => open [post_password] => [post_name] => gt-bc-technical-specification [to_ping] => [pinged] => [post_modified] => 2025-04-10 11:31:52 [post_modified_gmt] => 2025-04-10 18:31:52 [post_content_filtered] => [post_parent] => 0 [guid] => https://aiphone.local/kb/gt-bc-technical-specification/ [menu_order] => 0 [post_type] => kb [post_mime_type] => [comment_count] => 0 [filter] => raw ) [comment_count] => 0 [current_comment] => -1 [found_posts] => 44 [max_num_pages] => 11 [max_num_comment_pages] => 0 [is_single] => [is_preview] => [is_page] => [is_archive] => 1 [is_date] => [is_year] => [is_month] => [is_day] => [is_time] => [is_author] => [is_category] => [is_tag] => [is_tax] => 1 [is_search] => [is_feed] => [is_comment_feed] => [is_trackback] => [is_home] => [is_privacy_policy] => [is_404] => [is_embed] => [is_paged] => [is_admin] => [is_attachment] => [is_singular] => [is_robots] => [is_favicon] => [is_posts_page] => [is_post_type_archive] => 1 [query_vars_hash:WP_Query:private] => e27bf8f219fa324467792e221fb07121 [query_vars_changed:WP_Query:private] => 1 [thumbnails_cached] => [allow_query_attachment_by_filename:protected] => [stopwords:WP_Query:private] => [compat_fields:WP_Query:private] => Array ( [0] => query_vars_hash [1] => query_vars_changed ) [compat_methods:WP_Query:private] => Array ( [0] => init_query_flags [1] => parse_tax_query ) )

An Expanded System Failing To Enter Programming Mode

Summary

Multiple entrance stations on the system none of which can enter programming mode. None of the entrance stations share the shame dip switch configuration and power to the GT-BC has been cycled.

 

Solution

On an expanded system, the 5 entrances can have their ID set as 1 – 8 and wired into Common1 of the BCXB-N.  If any of them are set as ID #9 or greater and wired into common1 of the BCXB-N, then that entrance station will fail as those ID numbers are reserved for an expanded system, which wires into Common2.

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