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We present the results of VLA, ATCA, and Swift XRT observations of the 2015outburst of the transient neutron star X-ray binary (NSXB), EXO 1745$-$248,located in the globular cluster Terzan 5. Combining (near-) simultaneous radioand X-ray measurements we measure a correlation between the radio and X-rayluminosities of $L_R\propto L_X^\beta$ with $\beta=1.68^{+0.10}_{-0.09}$,linking the accretion flow (probed by X-ray luminosity) and the compact jet(probed by radio luminosity). While such a relationship has been studied inmultiple black hole X-ray binaries (BHXBs), this work marks only the third NSXBwith such a measurement. Constraints on this relationship in NSXBs are stronglyneeded, as comparing this correlation between different classes of XB systemsis key in understanding the properties that affect the jet production processin accreting objects. Our best fit disc-jet coupling index for EXO 1745$-$248is consistent with the measured correlation in NSXB 4U 1728$-$34 ($\beta=1.5\pm0.2$) but inconsistent with the correlation we fit using the most recentmeasurements from the literature of NSXB Aql X-1($\beta=0.76^{+0.14}_{-0.15}$). While a similar disc-jet coupling index appearsto hold across multiple BHXBs in the hard accretion state, this does not appearto be the case with the three NSXBs measured so far. Additionally, thenormalization of the EXO 1745$-$248 correlation is lower than the other twoNSXBs, making it one of the most radio faint XBs ever detected in the hardstate. We also report the detection of a type-I X-ray burst during thisoutburst, where the decay timescale is consistent with hydrogen burning.

Disc-Jet Coupling in the Terzan 5 Neutron Star X-ray Binary EXO 1745$-$248