TT-JAX® (.173) TELEPHONE TWIN JACKS BANTAM TYPE®

1. WTT89DC DIE-CAST FRAME (special order only)
2. TT89FM STEEL FRAME

click here to download a schematic drawing
(you will need to have Adobe Acrobat installed on your system to do this)

FEATURES

* Steel or die-cast frames. (Special order only).

* Twin, 3-conductor jacks on .312 inch centers, inter-
connected so circuit is opened when a mating plug is
inserted in one side of the jack.

* Palladium welded crossbar contacts are standard in
switching circuits.

* Solder lugs or wire-wrapping terminals.

* TT89, TT89C, WTT89 and WTT89DC jacks mount in
Series 1700 jack panels.

* TT89FM, TT89FMDC, WTT89FM and WTT89FMDC
jacks mount in Series TT59, TT60, TT61 and TT62
jack panels.

SPECIFICATIONS

Frame: Plated (steel or diecast zinc).

Stack Screws: Steel-plated.

Bushing: Plated (steel or copper alloy).

Tip, Ring and Contact Springs: Copper alloy.

Contacts: Welded crossbar palladium. Other alloys in various sizes available on special order.

Insulation: Rigid plastic with plastic tubing through stack assembly.

Mounting Hardware: #3-48x1/4 inch mounting screws, P10834, can be ordered separately for TT89, TT89DC, WTT89 and WTT89DC jacks. Two mounting screws, P25424, are supplied with TT89FM, TT89MDC, WTTFM and WTT89FMDC jacks.

NOTE: Dimensional drawings show panels with steel frame jacks. Overall dimensions for steel or die-cast frame jacks are the same.

Solder Lugs		Wire-Wrapping Terminals		Dim."X" Max.		Typical Mating
Steel	Die Cast	Steel	Die Cast	Inch (mm)	Conductors	Plug2
TT89	ý	WTT89	ý	Note 1		TT263
TT89FM	ý	WTT89FM	ý	1.188 (3.02)	3	TT263
1 Jacks with solder lugs: 1.062 (27). Jacks with wire-wrapping terminations: 1.688 (42.9). 2 See Mating Plugs Section. ý Special order only

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